For the following study identify the sources of sampling bias and describe how it might affect the study and conclusion and how you might alter the sampling method to avoid the bias.A nutritionist is interested in the eating habits of college students and observes what each student who enters a dining hall between 8:00 A.M. and 8:30 A.M. chooses for breakfast on a Monday morning.

Answers

Answer 1

Answer:

1. 1. Because convenient sampling is adopted here data is only gotten from students that eat in the hall in a given period of time so this is a source of bias

Also one study center that is the Hall of only one school is used this is also biased and may affect the result of the study

To avoid this bias a simple random sampling where each student have an equal chance of being selected in the study should be adopted


Related Questions

Given that events A and B are independent with P(A) = 0.4 and P(B) = 0.25,
determine the value of P(A and B), rounding to the nearest thousandth, if
necessary

Answers

Answer:

0.1

Step-by-step explanation:

To do this you would just multiply 0.4 and 0.25 which would get you 0.1

1.1.31
Determine whether the equation defines y as a function of x.
y = 3x² + 5x-4
Does the equation define y as a function of x?
Yes
No

Answers

Answer:yes

Step-by-step explanation:well its just yes so your welcome

Which of these is least likey to describe a distance below sea level? Whole Number ,Integer, Rational Number, Real Number​

Answers

Answer: A) Whole number

Explanation:

The set of whole numbers is {0,1,2,3,...} showing that negative values are not in this set. A distance below sea level is written as a negative (where positive values are above sea level). So you won't use the set of whole numbers for this type of problem.

In contrast, something like the set of integers is {..., -3, -2, -1, 0, 1, 2, 3, ... } including negatives this time. For example, we can write -10 to indicate we're 10 feet below sea level. Rational numbers and real numbers can also be negative.

If x and y are consecutive positive integers and x2 – y2 = 11, what is the value of y?
E. 1
F. 3
G. 5
H. 6

please provide explanation


Answers

Answer:

y = 5

Step-by-step explanation:

We khow that x and y are consecutive integers and that x^2 is greater than y^2 since x^2-y^2=11

● so x is greater than y

● wich means that x = y+1

● x^2-y^2=11

● (y+1)^2-y^2 = 11

● y^2+2y+1-y^2=11

● 2y + 1 = 11

● 2y +1-1 = 11-1

● 2y = 10

●2y/2 = 10/2

● y = 5

a bank tellers hourly wage will increase from $24 to $27.60. what percent increase does this represent?a stereo is marked down $105. if this is a 25% decrease, find the original price?

Answers

Answer:

i know

Step-by-step explanation:

but I don't have pen

Answer:

15$

Step-by-step explanation:

24.00 increased by 15% is 27.60

the increase is 3.60

so the answer is 15%

She cools one sample of bacteria to a temp of - 51 degrees C and another to -76 degrees C. What was the temperature difference in the two experiments?

Answers

It is 25 C

76 - 51 = 25

Round 24,619,746 to the nearest hundred

Answers

Answer:

2,461,974

hope this helped

Answer:

[tex]24,619,700[/tex]

Step-by-step explanation:

[tex]24,619,746[/tex] to the nearest hundred

In the hundreds, it says 746. Since 46 is close 0, the answer would be [tex]24,619,700[/tex]. If the number was greater than 5 it answer would have been [tex]24,619,746[/tex] . But the number is 46. So that means your answer is

[tex]24,619,700[/tex]

Hope this helps!

English
py a Whole Number
1
Emma and her 3 friends were thirsty, so she shared
2
gallon of lemonade equally among 4 people. How
much lemonade did each person get?
=4 =
2

Answers

Answer:

1/8

Step-by-step explanation:

on edgenuity

Will mark brainliest

Answers

Answer:

Step-by-step explanation:

The quotient of Y and 6 is 29" translates to Y/6 = 29. Solve this for Y

Y/6 = 29

Y = 29*6

Y = 174

So the second option is good

Number 15 is most likely  the last option

Answer:

[tex] \boxed{ \bold{ \boxed{ \sf{1. \: \: \: \: \frac{y}{6} }}}}[/tex]

[tex] \boxed{ \bold{ \boxed{ \sf{ 2. \: \: \: - 8}}}}[/tex]

Step-by-step explanation:

1. Quotient is a term for a division.

Quotient of y and 6 is written as y / 6

2. - 2 - 6

Calculate it :

= -8

hope I helped!

Best regards! :D

What is the height of BA?

Answers

Answer:

10 cm

Step-by-step explanation:

2/10=x/50

cross multiply

2*50=x*10

100÷10=x

x=10

Find all solutions by factoring.
4v2 - 25v = 21

Answers

Answer:

(4v + 3) and (v - 7)

Step-by-step explanation:

First rewrite 4v2 - 25v = 21 as 4v^2 - 25v - 21.

Let's now analyze -25v and -21.  We need to identify two integers whose product is 21 and whose sum is -25.  

Note that factors of -21 are ±1, ±3, ±7 and ±21.  Factors of 4 (the coefficient of v^2) are ±1, ±2 and ±4.

Check out the following trial factors:   (4v + 3) and (v - 7).  Does this product come out to the given 4v^2 - 25v - 21?  Yes.   So the desired factors of 4v2 - 25v = 21 are (4v + 3) and (v - 7).  Note how (3)(-7) = -21 and how 4(-7) + 3v add up to -25, the coefficient of the v term.

In the past, 75% of the tourists who visited Chattanooga went to see Rock City. The management of Rock City recently undertook an extensive promotional campaign. They are interested in determining whether the promotional campaign actually increased the proportion of tourists visiting Rock City. The correct set of hypotheses is:________.A) H0: P > 0.75 Ha: P 0)75B) H0: P < 0.75 Ha: P 0)75C) H0: P 0)75 Ha: P < 0.75D) H0: P 0)75 Ha: P > 0.75

Answers

Answer:

a

Step-by-step explanation:

The golfer with the highest score in a tournament was nine over par. The golfer with the lowest was five below par. What was the range in golf scores?

Answers

Answer: The range in golf scores was 14.

Step-by-step explanation:

Range = Maximum - minimum

Values above some limit are represented by positive integers whereas values blow a certain limit is represented by negative numbers.

Given: The golfer with the highest score in a tournament was nine over par i.e. (9). The golfer with the lowest was five below par i.e. (-5 ).

So, the range in golf scores =  9-(-5)

=  9+5

= 14

Therefore, the range in golf scores was 14.

What are the numerical measures of each angle
in the diagram?
<1and <3 measure
degrees
<2 and <4 measure
degrees.
(3x - 1)
1
3
2
(2x + 9)

Answers

Answer:

angle 1 and 3 are equal by vertically opp. angle

3x-1 = 2x +9

3x-2x = 9+1

x = 10

put the value of x in any equation

3(10)-1 = 29

angle 1 = angle 3 = 29

angle 2 + angle 3 = 180 ° (linear pair)

angle 2 = 180 -29

angle 2 = 149

angle = angle 3 = 149.

Hope it helps

I need some help on this

Answers

Answer:

When we are multiplying the same number, let it be n, m times, what we do is:

[tex]n^m[/tex], where n is the base and m the exponent.

In this case we have 4 fives, 2 threes, 3 x and 1 y which are being multiplied , so we can convert them to exponents:

4 fives: [tex]5^4[/tex]

2 threes: [tex]3^2[/tex]

3 x: [tex]x^3[/tex]

1 y: y

Then we multiply all: [tex]5^4*3^2*x^3y[/tex]

a 9-foot roll of waxed paper costs $2.16. What is the price per inch?

Answers

Answer:The answer is $0.24

Step-by-step explanation:divide 2.16 by 9

The 1-inch diameter pizza bite for $1 or the 10 inch diameter pizza for $10

Answers

Answer:

both same if we see. the one inch also costs l dollar wheras 10 dollar costs 10 inch. ok

Answer:

10in pizza

Step-by-step explanation:

We need to find the area of each pizza.

A = [tex]\pi[/tex][tex]r^{2}[/tex]

radius is 1/2 the diameter.

1in pizza                                    10in pizza

A = [tex]\pi[/tex]([tex].5^{2}[/tex])                                    A = [tex]\pi (2.5^{2} )[/tex]

A = .25[tex]\pi[/tex]                                     A = 6.25[tex]\pi[/tex]

A = .79                                        A = 19.63

                                                   19.63/10 for [tex]in^{2}[/tex] per $1

So the 1in pizza bite is $1 for .79[tex]in^{2}[/tex]  and we can see from the 10in pizza it's $1 for 1.96[tex]in^{2}[/tex]. So it is much better to get the 10in pizza.

There are three bells that ring at different intervals. The first bell rings every 6 minutes, the second
bell rings every 7 minutes, The third bell rings 9 minutes. If all the bells ring together at noon, at what
time will they next all ring together?

Answers

Answer:

2:06

Step-by-step explanation:

You just need to find the Least Common Multiple of the 3 numbers. In this case it was 126 which if those are minutes that would mean 2 hours and 6 minutes.

I enter the garden. There are 34 people. You hug 30. How many people are in the garden.

Answers

Answer:

34

Step-by-step explanation:

There are 34 people in the garden prior to the time I joined them.

So when I entered the garden, the total number of people in the garden will be:

34 + 1 = 35 people

Let assume, you as the reader was part of the people in the garden and you hugged 30 people. That doesn't add up or increase the number of people in the garden.

At the end of the day, the number of people you did not hug is:

35 - 30 - 1(you)

= 35 - 31

= 4 people

Therefore, we can conclude that there are 35 people present in the garden.

Learn more about word problems here:

https://brainly.com/question/2610134?referrer=searchResults

PLS HELP
oceans     1.4 × 1021kg

crust      2.6 × 1022kg

atmosphere   5.1 × 1018kg

mantle     4.043 × 1024kg

outer core   1.835 × 1024kg

inner core   9.675 × 1022kg

What is the order, from least to greatest, of the masses of each part of Earth? Order the parts from least to greatest, with 1 being the smallest mass and 5 the greatest mass.

1. Atmosphere

2.
3.
4.
5.
6.
whats the answer pls

Answers

Answer/

Step-by-step explanation:

Atmosphere OceansCrust Inner CoreOuter CoreMantle

Look at the powers of each x10. The bigger the power, the bigger the mass. Of two are in the same order, you look at the number next to it.

The ascending order from least to greatest is

Atmosphere - 5.1 × 10¹⁸ kg

Oceans - 1.4 × 10²¹ kg

Inner core - 9.675 × 10²² kg

Crust - 2.6 × 10²² kg

Outer core - 1.835 × 10²⁴ kg

What is Ascending Order?

When numbers are arranged in ascending order, they are done so from least to largest. We must first compare the numbers before we may arrange them in any order. Compare first, then order. Numbers arranged in ascending order: Determine how many digits each number has.

Given data ,

Let the masses of each part of the Earth be

oceans     1.4 × 1021kg

crust      2.6 × 1022kg

atmosphere   5.1 × 1018kg

mantle     4.043 × 1024kg

outer core   1.835 × 1024kg

inner core   9.675 × 1022kg

And , arranging them in ascending order , we get

Atmosphere - 5.1 × 10¹⁸ kg

Oceans - 1.4 × 10²¹ kg

Inner core - 9.675 × 10²² kg

Crust - 2.6 × 10²² kg

Outer core - 1.835 × 10²⁴ kg

Hence , the arranging order is solved

To learn more about ascending order click :

https://brainly.com/question/20681445

#SPJ3

John writes 1/5 of a page in 1\10 of a minute how much time is it going to take for him to read a whole page

Answers

Answer:

2 pages/min

Step-by-step explanation:

Unit rate is:

  1/5 page        1 * 10

------------------ = --------- page/min = 2 pages/min

 1/10 min           5 * 1

Answer:

30 seconds

Step-by-step explanation:

1/10 of a minute: 6 seconds

60/10 = 6

6x10 = 60

now, if 6 seconds is 1/5 of the page you need to multiply

6 x 5 = 30 seconds

it takes him 30 seconds to write a page

Is the product of fifteen negative integers positive or negative?

Answers

Answer:

the sign of the product of 15 negative numbers will be negative

Step-by-step explanation:

Heya mate!!

The product of odd numbers is odd and the product of even numbers is even.

so 15 is an odd number then the sign of product is odd

Hope this helps!!!

1. Explain the process for combining like terms for 12x - 3y + 8 - 5x + 4y

Answers

Answer: 7x+y+8

Step-by-step explanation:

Combining like terms is just like what it sounds. You take the like terms, or terms that have the same variables and such, and add them together.

For this problem, we can see that 12x and -5x are like terms because they both consist of a numerical coefficient and the variable x.

We can see that -3y and 4y are like terms because they both have a numerical coefficient and y for variable.

Now, we can combine like terms.

12x-3y+8-5x+4y                     [combine like terms]

7x+y+8

Solve the inequality z−18≥−23 and write the solution in interval notation, using improper fractions if necessary

Answers

Answer: [-5,∞)

Step-by-step explanation:

z-18 ≥ -23     Add 18  to both sides

 +18   +18

z ≥ -5    

Which means x has to be greater than negative 5.

In interval notation it will be [-5,∞)

Answer:

z ∈ [-5; +∞)

Step-by-step explanation:

z - 18 ≥ - 23

<=> z ≥ 18 - 23

<=> z ≥ -5

----> z ∈ [-5; +∞)

I need help with this question thx​

Answers

Answer: -5x^3 + 5y^3

Step-by-step explanation: The other parts cancelled out

Answer:

= -5x³ + 5y³

Step-by-step explanation:

4y³ - 5x³ - 1 - 4y³ - 6 + 7 + 5y³

= -5x³ + (4y³ - 4y³ + 5y³) + (- 1 - 6 + 7)

= -5x³ + (0 + 5y³) + (- 7 + 7)

= -5x³ + 5y³

The temperature was 3* C on Monday and was 7,5 degrees lower the next day. What
was the temperature on Tuesday?

Answers

Answer:

-4.5°c

Step-by-step explanation:

An equation is shown below:
4(x-3) - 5(x + 1) = 3
Which statement shows a correct next step in solving the equation? (1 point)

Answers

X=-20 I’m straight forward with my answers

Which expression is equivalent to 12x+(−7)−214x−(−2)?

Answers

Answer:

[tex]-(202x+5)[/tex] is the equivalent expression

Step-by-step explanation:

Given the following expression

[tex]12x+(-7)-214x-(-2)[/tex]

We are expected to find and re-write the expression such that it equals the given expression

We proceed by opening all brackets and work operations on signs

[tex]12x-7-214x+2[/tex]

collecting like terms we have

[tex]12x-214x-7+2\\\\-202x-5[/tex]

we can further re-write the new expression as

[tex]-(202x+5)[/tex]

Answer:

(23/454/7)(-324)

Step-by-step explanation:

25 points!!! Please help but DON'T give an answer pls Am i right?

Answers

I dont think so lol try drawing it out a translation is the same shape or point but in another quadrant either over the x axis or y axis

If g(x)=x^2+4x-5, find g(-4) PLEASE HELP

Answers

Answer:

-5

Step-by-step explanation:

g(x)=x^2+4x-5

g(-4)=(-4)^2+4(-4)-5

g(-4)=(-4)(-4)+(-16)-5

g(-4)=16-16-5

g(-4)=0-5

g(-4)=-5

Other Questions
Please help me with this questions. NEED AL THESE ANSWERED!!! 15 POINTS!!!Simplify the expressions: -4c - 6d + 9c + 2dSelect one:a. 5c - 4db. -5c - 4dc. -4c + 5dd. 5c + 4d 2(-y + 9) + 8ySelect one:a. -6y + 18b. -6y + 9c. 6y + 18d. 24y -3(-4y + 5) - 8ySelect one:a. -4y + 5b. -11yc. 4y - 15d. -4y - 15 6c - 8d + 3c +4dSelect one:a. 9c - 4db. -4c + 9dc. -9c - 4dd. 9c + 4d Use the figure below for Exercises 1-8. Note that RN pierces the plane at N. It is not coplanar with V.SRMNC.1. Name two segments shown in the figure.2. What is the intersection of CM) and RN ?3. Name three collinear points.4. What are two other ways to name plane V?5. Are points R, N, M, and X coplanar?6. Name two rays shown in the figure.7. Name the pair of opposite rays with endpoint N.8. How many lines are shown in the drawing? Brandon, a U.S. manager, is on a business trip in Tokyo meeting with a group of executives. Brandon receives a gift from one of the Japanese executives. What should Brandon most likely do? What is the molar mass of a ficticious element X if 109.9 g of X are required to react with 27.5 g of O2 to produce X2O3? I needed help plzzz it's for school Bronson Corporation incurs the following annual costs in producing 30,000 video cards for computers: However, if Bronson purchases the video cards from another company at a cost of $10 per card, what would be the increase (decrease) in net income if no fixed costs can be eliminated? A Bond With An Annual Coupon Rate Of 55% Sells For $970. What Is The Bonds "current Yield"? Both carpenters and building inspectors have been associated with the personality characteristics identified as realistic, conventional, and investigative. What are someabilities that would differentiate the two occupations?Inspectors use inductive reasoning on the job.Carpenters must use design skills in their workCarpenters need excellent written comprehension.Inspectors are good at visualization How does the cart seem to move from the 0 cm. mark depending on your location? Point K is between J and L. If JL-162, what is JK?4x+868-6JK KL Which transition of a hydrogen atom would absorb the greatest energy?a. n = 3 to n = 1b. n = 6 to n = 2c. n = 2 to n = 9d. n = 35 to n = 2e. n = 12 to n = 6f. n = 1 to n = 4 1. PLEASE HELP. Consider the matrices- Which of the following was an important contribution of African people to Colonial America? a. They influenced the type of clothes worn by colonists. b. They incorporated African styles into the houses and buildings that were built. c. They taught the enslavers their language and customs. (a) Argue whether or not a firm should continue production if its MR is lower than its AVC. (b) Support your argument with explanations. in triangle DEF and triangle PQR where DE is 2cm ,EF is 3cm, angle DEF is 60 and PQ is 6cm ,QR is 9cm, and angle PQR is 60 show that these are similar triangle with the appropriate criteria The main principle behind corporate governance is that the ultimate power to make decisions resides in the hands of _______________________. all of the following were parts of structure of the articles of confederation EXCEPT a-unicameral legislative bodyb- equal representation c- one vote per individual stated- an executive branch What is the periodic table and why is it neccessary? The Jennings Group reacquired 2 million of its shares at $50 per share as treasury stock. Last year, for the first time, Jennings sold 1 million treasury shares at $51 per share. If Jennings now sells the remaining 1 million treasury shares at $47 per share, by what amount will retained earnings decline