explain why biased sample is not an appropriate sample NO LINKS

ILL GIVE BRAINLIEST

Answers

Answer 1
Sampling bias occurs when some members of a population are systematically more likely to be selected in a sample than others. It is also called ascertainment bias in medical fields. Sampling bias limits the generalizability of findings because it is a threat to external validity, specifically population validity.

Related Questions

ALGEBRA PROBLEM PLEASE HELP

Answers

Answer:

B, C, and F are functions

Step-by-step explanation:

Which statement represents the number line shown?

A)x = 6

B)x > 6

C)x < 6

D)x ≠ 6

Answers

Answer:

B

Step-by-step explanation:

open circle means no underline and it is past the 6 so it is B

the answer is A, x=6
explanation: look at the line and where it’s plotted, u can put your finger on it and you’ll see :) hope this helps

number 7:

In ABC triangle, AB= 1.8cm, BC= 8cm and AC= 8.4cm

Does this triangle contain a right angle? If your answer is ‘yes’, state which angle it is and justify your answer

pls help

Answers

Answer:

yes, this triangle contain a right angle ,and it is B, because CB is the base and AB is the height.

The measure of an angle is 14.2°. What is the measure of its complementary angle

Answers

Complementary angles are the angles whose sum makes 90 degrees. According to the question, the other angle is 14.2 degrees more than the complementary angle. Therefore, 14.2° will be added to the other angle.

Answer:

75.8º

Step-by-step explanation:

The sum of complimentary angles is 90º

c + 14.2 = 90

Subtract 14.2 from both sides

c = 90 - 14.2

c = 75.8º

What is the dontain of the function graphed below?

I’ll give brainliest to the real answer

Answers

Answer:

the third one.........

[-2,0] and (7,oo)

It is the only one that matches

HOPE This helps!

Is the triangle below a right triangle? Why or why not?

Answers

Answer:

the triangle is not a right angle because it doesn't have the right angle square

Answer:

No because there is no angle of 90 degree.

3. Graph the circle from the standard form
(x - 1)² + y² = 49.

Answers

Answer:

center is at (1,0) with a radius of 7

Step-by-step explanation:

i hope this helps you graph it

Solve the following expression when
x = 7 and y = 2
(y + 2) · (x + 4 – 5)

Answers

Answer:

24

Step-by-step explanation:

4 x 6 = 24

Solve the equation f/2 +9=4 how can you isolate the variable F 

Answers

Answer:

F= -2.5

Step-by-step explanation:

divide both sides by two in order to isolate f.

by dividing by 2 on the left hand side it cancels out the /2 leaving you with only f

then because you divided the left hand side by 2 you need to do the same on the right therefore giving you -5/2 which equals -2.5

The value of f in the equation is -10.

What is a Variable?

'In mathematics, a variable is a symbol and placeholder for a quantity that may change. In particular, a variable may represent a number, a vector, a matrix, a function, the argument of a function, a set, or an element of a set.'

According to the given problem,

First we need to isolate the variable f:

⇒ [tex]\frac{f}{2}+ 9 = 4[/tex]

Now, transposing 9 to the right hand side,

⇒ [tex]\frac{f}{2}[/tex] = 4 - 9

⇒ [tex]\frac{f}{2} = -5[/tex]

⇒ f= ( -5 * 2 )

⇒ f= -10

Hence, the required value of the variable f is -10.

Learn more about linear equations here:

https://brainly.com/question/11897796

#SPJ2

Convert the degree measure into radians.
330°
A 11pi/6
B 11pi/3
C 6pi/7
D 4pi/3

Answers

Answer: A.

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

we have 2pi = 360°

=> 2pi× 330/360 = 360° × 330/360

=> 11pi/6 = 330°.

Please keep asking if you still have trouble understanding

Multiply (2.3 x 10^-5) (3.1 x 10^12

Answers

Answer:

71300000

Step-by-step explanation:

See the image below:)

A come has a slant height of 15 centimeters and a height of 12 centimeters. What is the radius

Answers

Answer:

The radius is 9cm.

Step-by-step explanation:

225 cm - 144 cm = 81 cm

√81 cm = 9 cm

A bag contains five red marbles, two orange marbles, one yellow marble, and two green marbles. Two marbles are drawn from the bag. What is the approximate probability one of the chosen marbles is orange and one of the chosen marbles is green? 0.02222 0.04444 0.08889 0.13333

Answers

Answer:B .04444

Step-by-step explanation: Edg

The probability of drawing an orange and a green marble is P = 0.08889

How to find the probability?

Let's assume that the first marble drawn is orange.

The probability of drawing an orange marble is equal to the quotient between the number of orange marbles and the total number of marbles on the bag, so the probability for this first event is:

p = 2/(5 + 2 + 1 + 2) = 2/10 = 1/5

Then we need to draw a green one, but notice that we already drew a marble, so now the total number of marbles is 9, then the probability will be:

q = 2/9

The joint probability is the product of these two, and we also need to add a factor of 2, because we also need to take in consideration the case where the first marble is green and the second is orange, then we will get:

P = 2*(1/5)*(2/9) = 0.08889

We can see that the correct option is the third one.

If you want to learn more about probability:

https://brainly.com/question/25870256

#SPJ2

Please help... this is overdue and i need to get it done- (20 points +brainly)

On the scale drawing of a car, the length from bumper to bumper is 6 inches. The car’s actual length, from bumper to bumper, is 16 feet. Make a ratio table of equivalent ratios to represent this ratio relationship. Your ratio table must show at least four different ratios. Include a copy of the ratio table in your answer.

Answers

Answer: 6/192, 1/32, 2/64, 3/96, etc.

Step-by-step explanation:

The scale drawing says that the length is 6 inches, and the actual length is 16 feet. First, we need to get both values into the same unit. 16 feet is 192 inches. So our base ratio is 6/192, or 1/32. Equivalent Ratios include 2/64 and 3/96. :)

What is the solution to this system of equations?

3x-2y=5
x+2y=7

x=_, y=_

Answers

Step 1) Solve the second equation for

x

:

x

+

3

y

=

5

x

+

3

y

3

y

=

5

3

y

x

+

0

=

5

3

y

x

=

5

3

y

Step 2) Substitute

5

3

y

for

x

in the first equation and solve for

y

:

3

(

5

3

y

)

2

y

=

7

15

9

y

2

y

=

7

15

11

y

=

7

15

15

11

y

=

15

+

7

0

11

y

=

22

11

y

=

22

11

y

11

=

22

11

11

y

11

=

2

y

=

2

Step 3) Substitute

2

for

y

in the solution to the second equation at the end of Step 1 and calculate x:

x=−5−(3×−2)

x=−5−(−6)

x=−5+6

x=1

The solution is x=1 and y=−2

Answer:

Step-by-step explanation:

A sales person earns $80 for every computer he sells. He earns an additional $250 for every 10 computers he sells that month. How many computers does he need to sell in order to earn $2,340 in a month?

Answers

Answer

23 computer

Step-by-step explanation:

if he sold 20 computers he would make 2100 which then he would need 240 more dollars to reach his goal and to find the answer you would then divide 240 by 80.

What is the mass of one water molecule in grams

Answers

Answer:

18.02

Step-by-step explanation:

what is a square root of 81

Answers

Answer: 9

Step-by-step explanation: 9 x 9 = 81

Answer:

9

Step-by-step explanation:

Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.

In a geometric sequence, g(3) = 1 and g(8) = 32. Which recursive definition produces this geometric sequence?

Answers

Step-by-step explanation:

a geometric sequence means every new element is created by multiplying the previous element always with the same number.

a n = a n-1 * number

a n = a1 * number^(n-1)

=> a8 (or g(8)) / a3 (or g(3)) = number^5 (5=8-3)

=> 32/1 = number^5

=>

[tex]number = \sqrt[5]{32} [/tex]

number = 2

and what is the starting a1 ?

it must satisfy e.g. a3

1 = a1 * 2^2

=> a1 = 1/4

therefore, the requested definition looks like

g(1) = 1/4

g(n) = g(n-1) * 2

Find the nth term and the indicated term of the arithmetic sequence whose initial term, a, and common difference, d, are given.
a = 6; d = -3
an = ?; 214 = ?
O A. an = 9-3n; 14 = - 15
O B. a, = 9+ 3n; 214 = -33
O c. a, = 6 - 3n; 214 = - 33
OD. an = 9 - 3n; 214 4 = -33

Answers

Answer:

fevgrnumnrbvec

Step-by-step explanation:

Please help me with this

Answers

Answer:

(3x6) / 6 is the correct answer

Answer:

(3. 6)/618/63

Thus 3 is the answer to the question

2x^2-2x-4=0 solve for x

Answers

divide both sides by 2 and rewrite too X^2 - x - 2 = 0. then factor and get x(x+1)-2(x+1)=0. separate them to (x+1)(x-2)=0 then you get x+1=0 and x-2=0 and solve and X equals -1 & 2

1. In each case, which average do you think is most useful: the mean, median, or mode?
Justify your answer.

Answers

Answer:

depends on the cases. they all have different uses

Write the slope-intercept form of the equation of each line given the slope and y-intercept.

Slope= -10/3, y- intercept=5

Answers

The answer to this question is y= -10/3x+5

Answer:

y = -10/3x + 5

Step-by-step explanation:

Hi there!

We are given that a line has a slope of -10/3, and a y intercept of 5

We want to write the equation of this same line in slope-intercept form, which is y=mx+b, where m is the slope and b is the y intercept

As we are already given the slope and y intercept, we can simply substitute these values into the format for slope-intercept form to find the equation of the line!

Starting with the slope, substitute -10/3 as m in y=mx+b

y = -10/3x + b

Now for the y intercept, substitute 5 as b in the equation

y = -10/3x + 5

Hope this helps!

See more on this topic here: https://brainly.com/question/17788099

Which linear inequality is represented by the graph?
2
1
5 4 3 2 1
o ya x-4
oys x-4
ys-x+4
oyz x+4
3
-2-
3
Save and Exit
Next
Submit

Answers

The required equation will be y ≤ 1/3 x - 4

The standard form of a linear equation is y = mx + b

m is the slope of the lineb is the y-intercept

Using the coordinate points (0, -4) and (3, -3)

m = -3+4/3-0

m = 1/3

Since the line cross the y-axis at y = -4, henc b = -4

Get the required equation;

y = mx + b

y = 1/3x - 4

Since the line is solid and shaded below, hence the required equation will be y ≤ 1/3 x - 4

Learn more inequality here: https://brainly.com/question/11613554

Math question!
Marta, a jeweler, has 78 ounces of gold. She needs
25 of an ounce for each pendant. How many pendants can she make? Show your thinking!

Answers

Answer:

3.12

Step-by-step explanation:

if you are in an algebra class write the let statements x = number of pendants

25x = 78 (divide by 25 on both sides)

x = 3.12

if you are not in an algebra class then just divide 78 by 25

Angle rides her bicycle 2/3 mile to school on Friday she took a shortcut so that the ride to school was 1/9 mile shorter how was angle bicycle ride on Friday

Answers

Answer:

5/9 miles

Step-by-step explanation:

please help to solve this ​

Answers

Answer:

☥ [tex] \underline{ \underline{ \red{\large{\tt{S \: O \: L \: U \: T \: I \: O \: N}}}}} : [/tex]

Let Cost Price ( CP ) be x

☃ [tex] \large{ \tt{MP = x + 30\% \: of \: x}}[/tex]

➝ [tex] \large{ \tt{x + \frac{30}{100}x }}[/tex]

➝ [tex] \large{ \tt{x + 0.3x }}[/tex]

➝ [tex] \large{ \tt{1.3x}}[/tex]

☂ [tex] \large{ \tt{SP = 1.3x - 15\% \: of \: 1.3x}}[/tex]

⇾ [tex] \large{ \tt{1.3x - \frac{15}{100} \times 1.3x}}[/tex]

⇾ [tex] \large{ \tt{1.3x - 0.195x}}[/tex]

⇾ [tex] \large{ \tt{1.105x}}[/tex]

☼ [tex] \large{ \tt{Profit = SP - CP}}[/tex]

⟶ [tex] \large{ \tt{1.105x - x}}[/tex]

⟶ [tex] \large{ \tt{0.105x}}[/tex]

♨ [tex] \large{ \tt{P\% = \frac{Profit}{CP} \times 100 \%}}[/tex]

⤑ [tex] \large{ \tt{ \frac{0.105x}{x} \times 100\%}}[/tex]

⤑ [tex] \boxed{ \large{ \purple{\tt{10.5\%}}}}[/tex]

Hence , Profit % = 10.5 %

♕ Hope I helped ! ♡

☄ Have a wonderful day / night ! ♫

✎ [tex] \underbrace{ \overbrace{ \mathfrak{Carry \: On \: Learning}}}[/tex]

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

El ser vivo mas pequeño es un virus que pesa de orden de 10-8 grs, y el mas grande es la ballena azul que pesa aproximadamente 138 Tns. ¿Cuantos virus seràn necesarios para conseguir el peso de la ballena ?

Answers

Answer:

ifabmhxm Myers stentxehbetzegxnbwzryo3

what expression is equivalent to 3(x+6)

Answers

Answer:

efthybybybybybybyh

Step-by-step explanation:

rvvttbyby4nun4unrruneun

Answer:

3x+18

Step-by-step explanation:

Other Questions
Review the table of values for function j(x) = StartFraction x squared minus 7 x minus 8 Over x squared minus 4 x minus 32.xj(x)7.90.7478997.990.7497917.9990.7499798undefined8.0010.7500218.010.7502088.10.752066What is Limit of j (x) as x approaches 8, if it exists?0.3750.758DNE You want to use a computer to make a painting of your backyard to go along with a story you wrote. Which software would be appropriate? Choose all that apply.Adobe PhotoshopLibreOffice CalcLibreOffice DrawInternet ExplorerGIMPthe answer is A, C, E I need help with multiple questions I will give brainliest9. An advantage of a retirement account is _____.money is taken out of your paycheck before you pay taxes on itfees for making early withdrawalsyou sometimes have to find your own investment houselow-interest rates10. A percentage that shows how much gain or loss an investment makes is called liquidity, risk, or rate of return. 11. If you want your investment or savings account to be easily turned into cash without losing its value, consider the _____.yieldtermliquidityrisk12. Which of the following is a type of college savings account? Money market, CD, 529 plan. help pls, i cant find the answer. the answer has to be a whole number Andy states that my parents aint got no grip on reality give two examples of how he applies this to his mother Who are the top three trading partners with the US? Find the coordinates of the intersection of the diagonals of parallelogram GHJK with vertices G(1,3), H(2,1), J(-1,-5), and K(-2,-3). HELP FAST!! WHAT IS THE CENTRAL IDEA OF THE PASSAGE?? WILL MAKE BRAINLIEST!!!What are the practical results of the modern cult of beauty? The exercises and the massages, the health motors and the skin foods-to what have they led? Are women more beautiful than they were? Do they get something for the enormous expenditure of energy, time, and money demanded of them by the beauty cult? These are questions which it is difficult to answer. For the facts seem to contradict themselves. The campaign for more physical beauty seems to be both a tremendous success and a lamentable failure. It depends how you look at the results.It is a success insofar as more women retain their youthful appearance to a greater age than in the past. "Old ladies" are already becoming rare. In a few years, we may well believe, they will be extinct. White hair and wrinkles, a bent back and hollow cheeks will come to be regarded as medievally old-fashioned. The crone of the future will be golden, curly, and cherry-lipped, neat-ankled and slender. The Portrait of the Artist's Mother will come to be almost indistinguishable, at future picture shows, from the Portrait of the Artist's Daughter. This desirable consummation will be due in part to skin foods and injections of paraffin wax, facial surgery, mud baths, and paint, in part to improved health, due in its turn to a more rational mode of life. Ugliness is one of the symptoms of disease; beauty, of health. Insofar as the campaign for more beauty is also a campaign for more health, it is admirable and, up to a point, genuinely successful. Beauty that is merely the artificial shadow of these symptoms of health is intrinsically of poorer quality than the genuine article. Still, it is a sufficiently good imitation to be sometimes mistakable for the real thing. The apparatus for mimicking the symptoms of health is now within the reach of every moderately prosperous person; the knowledge of the way in which real health can be achieved is growing, and will in time, no doubt, be universally acted upon. When that happy moment comes, will every woman be beautiful-as beautiful, at any rate, as the natural shape of her features, with or without surgical and chemical aid, permits?The answer is emphatically: No. For real beauty is as much an affair of the inner as of the outer self. The beauty of a porcelain jar is a matter of shape, of color, of surface texture. The jar may be empty or tenanted by spiders, full of honey or stinking slime-it makes no difference to its beauty or ugliness. But a woman is alive, and her beauty is therefore not skin deep. The surface of the human vessel is affected by the nature of its spiritual contents. I have seen women who, by the standards of a connoisseur of porcelain, were ravishingly lovely. Their shape, their color, their surface texture were perfect. And yet they were not beautiful. For the lovely vase was either empty or filled with some corruption. Spiritual emptiness or ugliness shows through. And conversely, there is an interior light that can transfigure forms that the pure aesthetician would regard as imperfect or downright ugly. What is the value of the expression 1/7 divided by 5 ? if the reading of a mercury barometer is 75.58cm at the base of a mountain and 66.37cm at the summit,what is the height of the mountain? (density of mercury= 13600kg/m, average density of air=1.25kg/m Natalie and Rick are both at the supermarket today. Natalie goes to the supermarket every 6 days and Rick goes every 9 days. In how many days will they both be at the supermarket again? the parent cosine function is transformed to create the function m(x) =-2cos(x+). which graphed function has the same amplitude as function m Determine the radius of a cone that has a volume of 230 ft' and a height of 15 ft.Round the answer to the nearest tenth. If the final mass of the system is 120g, what was the percent yield of the reaction? Work out the relative formula mass of ammonium nitrate, NH4NO3.Relative atomic masses: H 1; N 14; O 16.......................................................................................................................................................................................................................................................Relative formula mass of ammonium nitrate = ............................... A scatter plot is graphed on the coordinate grid shown below. Which equation best describes a line of best fit for the data? Find the pH of a solution with a [H+] of 0.045M. What is the captial of nepal Angle JKL and angle MKQ are complementary angles. The measure of angle JKL is twice the measure of angle MKQ In order to expand agriculture and urban areas to meet increased demand for growing populations, water supplies often have to be diverted. In three to five sentences, construct a potential chain of consequences for what could happen when water is diverted from large bodies like lakes and rivers.thank u :]