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Arturiano [62]
3 years ago
9

Alejandro wants to determine the average shoe size of all of the male students in his school. Which sample is likely to yield th

e most biased results? A.every tenth boy on the school’s phone list B.every member of the boys’ basketball team C.every boy in a randomly selected ninth-, tenth-, eleventh-, and twelfth-grade gym class D.every fifth boy who walks through the front doors of the school in the morning
Mathematics
2 answers:
Dimas [21]3 years ago
5 0
B. every member of the boys' basketball team 

because people who play basketball are generally taller which means they have bigger feet (most of the time) which doesn't accurately represent the average of the male student body. 
larisa86 [58]3 years ago
5 0
<h2>Answer:</h2>

Option: B is the correct answer.

B.   Every member of the boys’ basketball team

<h2>Step-by-step explanation:</h2>

We know that a biased sample is one in which the sample is not random.

There is some partiality or some preference of choosing a member of a sample.

A.) Every tenth boy on the school’s phone list.

As the choosing of the members of a sample is random i.e. each student has an equal probability of getting chosen.

             Hence, the sample is not biased.

C.)  Every boy in a randomly selected ninth-, tenth-, eleventh-, and twelfth-grade gym class.

Again this sample is random.

                     Hence, the option is incorrect.

D.) Every fifth boy who walks through the front doors of the school in the morning.

In this sample every person has an equal probability.

           Hence, the sample is not biased.

B.)  Every member of the boys’ basketball team.

This is a biased sample since the members in the basketball team have a big height and hence their foot size is also big. So, we can't obtain a good result for determining the average shoe size of all the male students in the school.

                  Hence, the sample is biased.

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Luba_88 [7]

Step-by-step explanation:

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  1. lcm 3
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7 0
3 years ago
Patrick wants to play laser tag. It costs $9.00 per game and he gets a student discount of $10. Write an equation to represent t
Nana76 [90]

Answer:

T=9x-10

Step-by-step explanation:

Let x be the number of games

Cost of 1 game = $9

Cost of x games = 9x

he gets a student discount of $10.

So, Cost after discount = 9x-10

Let the total cost be T

So, T=9x-10

So, An equation to represent the total cost of playing laser tag including the discount is  T=9x-10

3 0
3 years ago
To the nearest hundredth, what is the length of line segment AB?
Vesnalui [34]

Answer:

5.83 units

Step-by-step explanation:

See attached picture.  You can use the Pythagorean Theorem.  I added some lines to show the legs of a right triangle.  AB is the hypotenuse.

3^2+5^2=(AB)^2\\\\9+25 = (AB)^2\\\\34=(AB)^2\\\\AB=\sqrt{34} \approx 5.83

5 0
2 years ago
What pattern do you see in the powers of 4?
Studentka2010 [4]
<span>Pattern did the power of 4 shows:
Let’s have an example of the power of 4
=> 4 will be multiplied 4 times
=> 4 x 4 = 16
=> 16 x 4 = 64
=> 64 x 4 = 256
=> 256 x 4 = 1024
=> 1024 x 4 = 4096
=> 4096 x 4 = 16384
………………..

Did you notice the pattern? The last number of each answer always ends up with 4 and followed by 6.</span>



4 0
3 years ago
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Which triangle is a 30°-60°-90° triangle?
Bess [88]

Answer:

the first one

Step-by-step explanation:

4 0
3 years ago
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