To determine whether students at Bernal want to attend an art festival at the school, Manuel surveys all the students in the library at lunch.


Biased or unbiased. Explain for brainlist, no links or report.

Answers

Answer 1
Biased- selection bias

Related Questions

50 POINTS
If A denotes the area of the sector of a circle of radius r formed by the central angle theta, find the missing quantity. if necessary, round the answer to two decimal places.

r=9 inches, theta = pi/6 radians, A=?

Answers

Answer:

Step-by-step explanation:

Area of sector = ½ r² ∅

1/2 ( 9^2) pi/6

81 x pi/6 x 1/2

81 x (0.52359877559) x 1/2

Area of sector = 21.21

help me with this math plz​

Answers

Blue- Complementary or Same side Interior Angles
Purple- Alternate Exterior Angles, or Vertical (Probably the first)
Green- Corresponding Angles

If y equals -3 then 4 + y / 4 y =

Answers

Answer:

[tex] y = - 3 \\ \frac{4 + y}{4y} = \frac{4 + ( - 3)}{4( - 3)} = \frac{4 - 3}{ - 12} = \frac{ - 1}{12} [/tex]

Answer:

6.25 or 8 try those

Step-by-step explanation:

Lizzie rolls two dice. What is the probability that one of the dice shows a 6 or the
the total sum of both dice is a prime number (or both)?

I really need the answer pls I have to submit this really quickly

Answers

Answer:

5/12

Step-by-step explanation:

one if duce shows a 6 =>

(6,..) and (..,6) => 11 events

both dice is prime number :(2, 3 &5)

3×3 = 9 events

total events = 11+9=20 events

so, probability = P = 20/36 or 5/12

Hi Is 4/8 equal 8/10

Answers

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

Answer:

No

0.5 ≠ 0.8

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

Answer:

No, it is not.

Step-by-step explanation:

The reason is that if you simplified  4/8, you will get 1/2. When you simplified 8/10, you will get 4/5. 1/2 and 4/5 aren't the same number or equivalent to each other so the answer will be no.

Hope that helps. If you need help with anything, let MissAsker know :)!

Find t:

6 x 10^t = 360

Answers

Answer:

t=1.78

Step-by-step explanation:

t = log (60)
or decimal form: 1.778
rounded is 1.77 or 1.8 if ur going for the nearest tenth

Find the area of the circle to the nearest hundredth.
4 in.
18
area: about in.2

Answers

Answer: 50.24

Step-by-step explanation:

The equation to find the area of a circle is pi*r^2. First, r^2 is 4^2 which is 16.  Then times pi. Assuming pi in this case is 3.14, 3.14 times 16 is 50.24.

classify a triangle whose side lengths are 8, 16, and 18

Answers

Answer:

Acute

Step-by-step explanation:

Acute Triangle. It is all lower that 90°

Who is able to solve this problem for me please!!!!!!!!!!
Brainiest will be marked!!!!

No link i can’t open it!!!

Answers

Answer:

11

Step-by-step explanation:

I did the square root method.

hope this helps!

1. Narrow building The Sam Kee Building in Vancouver is the narrowest
commercial building in the world. The ratio of its length to its width is 503,
It is 30 m long. How wide is it?

Answers

Length:Width
530:1
30:x
X/30= 1/530
Multiply 30 on both sides
X= 3/53 =0.05660377

I need help Please and thank you What is the area of the triangle below? 21 yd 14 yd​

Answers

Answer:

147 square yards

Step-by-step explanation:

Area = 21 x 14 x 1/2

Area = 294 x 1/2

Area = 147 yd ^ 2

Hope that helps! :)

-Aphrodite

area of triangle is A=1/2(b)(h)
so it would be:
A=1/2(14)(21)
A=1/2(294)
A= 147

The spinner below is spun, then a month of the year is randomly selected. Find the probability of P(unshaded, then a month that starts with the letter A)

Answers

Answer:

C)150

Step-by-step explanation:

P (blue)  fraction = 2/8   decimal=.25     percent=25%

P(purple) fraction=0/8   decimal=0         percent =0%

P(not green)  fraction=5/8     decimal=.625     percent= 62.5%

P(not brown) fraction=8/8     decimal=1   percent =100%

2)Refer to the table on air travel selected airports. Suppose a flight that arrived at El Centro is selected at random. What is the probability that the flight did not arrive on time? write your answer as a fraction, decimal and percent.    

80% on time so 20% are not on time

20/100 ÷ 20 =1/5

20%, .2, 1/5

3)The spinner has 8 sectors labeled with letters. Each sector of the spinner below is the same size, as shown.

If the arrow is spun 400 times , how many times  would it be  expected to land on a sector labeled B?

A)50                 C)150

B)100                D)250

PLEASE MARK ME AS BRAINLIEST

A student must have at least 10 hours of instructor-assisted driving time to pass
the course. Write an inequality to describe this situation.

Answers

Answer:

t ≥ 10

Step-by-step explanation:

Since the student needs at least 10 hours of driving time, they need greater than or equal to 10 hours to pass.

can someone please help me on this problem

solve (round to two decimal places)

Answers

Answer:

27.42

Step-by-step explanation:

Find the measure of ZBAC.

Answers

Answer:

[tex] = \frac{57}{2} \\ = 28.5[/tex]

A 24-ounce can of mixed nuts contains 50% peanuts, 0.20 almonds, 1/10 cashews, and 0.20 hazelnuts. Which of the following represents the total amount of almonds and hazelnuts in the can?

Answers

Answer:

9.6 ounces

Step-by-step explanation:

Step 1

We find the amount of ounces of Almonds

Total amount of nuts in the container = 24 ounces

0.20 of the nuts are almonds.

Hence,

The amount of almonds = 0.20 × 24 ounces

= 4.8 ounces

Step 2

We find the amount of ounces of hazelnuts

Total amount of nuts in the container = 24 ounces

0.20 of the nuts are hazelnuts.

Hence,

The amount of hazelnuts = 0.20 × 24 ounces

= 4.8 ounces

Step 3

Therefore, the total amount of almonds and hazelnuts in the can is

4.8 ounces + 4.8 ounces

= 9.6 ounces

Find the maximum value of
P = 4x + 5y
subject to the following constraints:
x + 3y = 13
3x + 2y < 25
X>0
y>0
P = [?]

Answers

Answer:

38 is the maximum value

Step-by-step explanation:

First we should graph each inequality. Then we can find the points on the intersecting region and take those points and plug them into the equation P = 4x + 5y. Then we can find the maximum value from there. The maximum value is tied to the point (7, 2), with P = 38. :)

BRAINLIEST TO FIRST ANSWER

Use this story to answer all the following questions:

Vanessa's team played 8 games of basketball. During those 8 games her team's score was: 68, 76, 63, 58, 64, 75, 78 and 78.

What is the mean?

2.
What is the median?

3.
What is the range?

4.
What is the mean absolute deviation?

Answers

Answer:

The mean is 70, that's all I know. Sorry!

Step-by-step explanation:

Here's how you find the mean:

1. Add together ALL NUMBERS. (which equals 560 in this case.)

2. DIVIDE by the amount of numbers there are. (So 560 ÷ 8 = 70)

3. There's your answer! The mean of these numbers is 70.

I really hope this helps! Have a great day\night!

I need help please ty

Answers

Answer:

Step-by-step explanation:

dads know dude

This person has been spamming me so I know they’ll read this. Your a really annoying person. All you do is spam useless links and have been spamming me. I can’t even ask questions because he fills the answers with links. Just go away or shut U P. Thank you

Answers

Answer:

The same person does that to me and i heard to NOT mess with those link because they can find our address or something

Step-by-step explanation:

Solve for the value of y.
60°
(8y-2)

Answers

since it's a right angle the sum of the two angles equals 90°
(8y-2)°+60°=90°
8y-2=90-60
8y-2=30
8y=30+2
8y=32
y=32/8
y=4

For a certain population of sea urchins, 16% are longer than 8 inches. A random sample of 75 sea urchins will be selected. What is the standard deviation of the sampling distribution of the sample proportion of sea urchins longer than 8 inches for samples of size 75?

Answers

Answer:

0.042

Step-by-step explanation:

Given :

p = 16% = 0.16

q = 1 - p = 1 - 0.16 = 0.84

Sample size, n = 75

The standard deviation of sampling distribution :

√(pq)/n

√(0.16 * 0.84) / 75

√0.1344 / 75

√0.001792

Standard deviation of sampling distribution = 0.0423320

plsssssssss somebodyy helppp meeeee

Answers

80 pounds would be correct
Jessica should weight about 80 pounds

Hans invests $550 at a rate of x% per year compound interest. At the end of 10 years, the value of the investment is $638.30, correct to the nearest cent.
Find the value of x.

Answers

Answer:

1.5%.

Step-by-step explanation:

x per cent is written as 0.01x as a decimal fraction.

638.30 = 550(1 + 0.01x)^10

(1 + 0.01x)^10 = 638.30/550

Taking logarithms:

10 ln (1 + 0.01x) = ln ( 638.30/550)

ln (1 + 0.01x) =  ln ( 638.30/550)/ 10

ln(1 + 0.01x) = 0.014889

Converting the logs:-

1 + 0.01x = e^0.014889 = 1.015

0.01x = 1 - 1.015

0.01x = 0.015

x = 0.015/ 0.01

= 1.5.

hmmmmmmmmmmmmmmmmmmmm

Answers

Answer:

correct

Step-by-step explanation:

don't change anything

It’s correct make sure you don’t change anything

What is the area of the rectangle below?

Answers

Answer:

5/9m

Step-by-step explanation:

5/6 x 2/3

Given, length = 5/6 m breadth = 2/3 m

To find: Area of the Rectangle

We know that, Area of the Rectangle = l x b

= 5/6 x 2/3

The answer is 10/18

Martin has a combination of 33 quarters and dimes worth a total of $6. Which system of linear equations can be used to find the number of quarters, q, and the number of dimes, d, Martin has?

q + d = 6 25q + 10d = 33
q + d = 6 0.25q + 0.1d = 33
q + d = 33 25q + 10d = 6
q + d = 33 0.25q + 0.1d = 6

Answers

Answer:

q + d = 33  0.25q + 0.1d = 6 Option D

Step-by-step explanation:

The system of linear equation that can be used to find the number of quarters, q, and the number of dimes, d, Martin has is as follows:

q + d = 33

0.25q + 0.1d = 6

Martin has a combination of 33 quarters and dimes worth a total of $6.

Therefore,

q = number of quarters

d = number of dimes

The linear equation can be represented below:

0.1 dollars = 1 dime

0.25 dollars = 1 quarters

Therefore,

0.25q + 0.1d = 6

The quarters and dimes total 33. Therefore,

q + d = 33

Therefore, the combined equation will be as follows:

q + d = 33

0.25q + 0.1d = 6

learn more on dimes and quarters here;https://brainly.com/question/3095346?referrer=searchResults

Ifm_2 = 68°, what is the measure of angle 7? 1 2. 3 5 7​

Answers

Answer:

∠7=22°

Step-by-step explanation:

∠2 and ∠7 are supplementary angles, meaning they add to 90°.

∠2+∠7=90°

substitute ∠2

68°+∠7=90°

∠7=22°

John and Caleb want to make the high school basketball gym, so they are going to join a gym over the summer. John decided to go to Planet Fitness, which costs $30 to join, and $5 per visit. Caleb decided to go to Club4Fitness, which just charges $8 per visit. After how many visits have John and Caleb spent the same amount of money, and how much money did they spend?

Answers

Answer:

10 visits

Step-by-step explanation:

John and Caleb want to make the high school basketball gym, so they are going to join a gym over the summer.

Let the number of visits be represented as: x

For John

John decided to go to Planet Fitness, which costs $30 to join, and $5 per visit.

The equation = $30 + $5 × x

= 30 + 5x

For Caleb

Caleb decided to go to Club4Fitness, which just charges $8 per visit.

The Equation = $8 × x

= 8x

We equate both equations to each other

30 + 5x = 8x

Collect like terms

30 = 8x - 5x

30 = 3x

x = 30/3

x = 10

Therefore, John and Caleb would spent the same amount of money after 10 visits.

A picture that measures 10 cm long is reduced on a copy machine to 4 cm long. If the width of the original picture is 6 cm, what is the width
of the reduced picture? Set up a proportion to solve this problem?

Answers

2.4 cm

Step-by-step explanation:

10/4 = 6/x

x = width of reduced picture

24 = 10x (cross multiplication)

24/10 = x

2.4 = x

The width of the reduced picture is 2.4 cm.

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