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dangina [55]
1 year ago
9

The student council at mountain view high school plans to conduct a survey to determine the student body's opinion of the new lu

nch menu. which of the following sampling methods would be most likely to result in self-selection bias?
A. obtaining an alphabetical list of all students and surveying every 10th student

B. setting up a booth in the lunchroom where students can give theirthoughts

C. handing out a questionnaire to students leaving campus at lunchtime

D. handing out a questionnaire to seniors only
Mathematics
1 answer:
Alecsey [184]1 year ago
4 0

The sampling method that would be most likely to result in self-selection bias is given by:

D. handing out a questionnaire to seniors only

<h3>What is sampling?</h3>

It is a common statistics practice, when we want to study something from a population, we find a sample of this population, which is a group containing elements of a population. A sample has to be representative of the population, that is, it has to involve all segments of the population.

In this problem, in option D, only seniors are involved, that is, it does not involve all segements, hence it would be most likely to result in self-selection bias.

More can be learned about sampling concepts at brainly.com/question/25122507

#SPJ1

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Algebra 2 inverse functions
Mashutka [201]

Answer:

The inverse function is:

{(1,8), (2,-1), (5,10), (-3,-3)}

Step-by-step explanation:

When a function is represented in the form of ordered pairs, the first element of each ordered pair is the input and the second element in each ordered pair is the output. In the inverse of a function the input becomes output and the output becomes input.

Given function is:

{(8,1), (-1,2), (10,5), (-3,-3)}

Reversing the order of elements of ordered pairs will given us the inverse function.

The inverse function is:

{(1,8), (2,-1), (5,10), (-3,-3)}

5 0
3 years ago
Human blood may contain either or both of two antigens, A and B. Blood that contains only the A antigen is called type A, blood
Talja [164]

Answer:

A. 0.50

B. 0.85

C. 0.05

Step-by-step explanation:

A. Based on the initial statistics, 50% of the blood type is blood type O, hence the probability of choosing bold type O at random is 50/100, which is 0.50 to two decimal places.

B. The total number of donors that can donate to Blood type A is 85%, thus, the probability is 85/100, which is 0.85 to two decimal places.

C. The percentage of people that have the type AB blood is 5%, thus the probability of someone having the A antigen and blood type AB is 5/100, which is 0.05 to two decimal places.

6 0
3 years ago
( h -3 )2 for h = 5 what is it
Nookie1986 [14]

Answer: 4

Step-by-step explanation:

Substitute the value of the <u><em>variable</em></u> into the <u><em>equation</em></u> and simplify.

I evaluate and found the exact value: 4

( h -3 )2 \\h = 5

If you want me to Find the Linearization at h=5: Use the formula L(x)=f(a)+f'(a) (x-a)  to find the linearization.

Answer(Find the Linearization at h=5): L(x)=2x-6

4 0
2 years ago
Read 2 more answers
Help me to answer this question
Vlad [161]
A I think usuauauauau
7 0
3 years ago
Read 2 more answers
Due tomorrow please help :)
coldgirl [10]
Okay, so your first one, number six. You have two shapes there, a cone and a circle. Now you have a full cone and a half of a circle. Let's start with the cone. The formula for the volume of a cone is πr²h/3. You have your height, that is 12, so get your paper out and plug that in. H = 12. Now, your radius is where it gets a bit tricky. Have you ever heard of the Pythagorean theorem? It's a²+b²=c². Look at the cone, but look at it like it's a two-dimensional shape. You see the triangle in the middle, ignore the rest and pretend it's only that triangle. You now have a right triangle, You know your height is 12, and by looking at the triangle adjacent to it, and know it's equal, you know that your hypotenuse (the longest side of your triangle) is 15. So plug that into the Pythagorean theorem. Now you have 12²+b²=15². Use algebra to work that out, and you're left with 9. So your radius is 9. Now plug that into your volume of a cone equation. The volume of the cone is about 1017.88. Now find the circle or sphere. The formula is 4/3πr³. Just plug in your radius and get your answer, which is 3053.63. Now cut that in half, as you've only got half a circle. Now you've got 1526.82. Now add that to the volume of your cone, and you've got your final answer. 2544.7, or about that. I used π on a calc, and not 3.14, so it might be a little different.

Do you think you can do the next one? Just look at your triangle in there. You've already got one side and a hypotenuse, so plug it into the Pythagorean theorem and get your last side. Then look at the little marks on there and you can see if places are the same. If you need help with it don't hesitate to ask. I'm staying up all night anyway. Homeschooled and behind, so I'm not going anywhere.
7 0
2 years ago
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