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nignag [31]
3 years ago
11

30 random samples of high school students were asked if they played a sport for their high school. Each sample was 20 students.

The dot plot represents the 30 random sample proportions.
Choose ALL that are correct.


A) A sample proportion of 0.20 means that 4 of 20 high school students responded that they play a sport.

B) Based on the sample distribution, the best prediction for the proportion of all high school students that play a sport is 0.10.

C) The mean of the 30 sample proportions calculated to the nearest hundredth is 0.16.

D) The shape of the sample distribution is fairly symmetrical.

Mathematics
1 answer:
stiv31 [10]3 years ago
5 0

Answer: a. This option is correct

b. This will be true only if we take the mode as the best representative value

c. This is a not correct choice

d. This option is correct

Step-by-step explanation:  Took the test on USATest Prep

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<h2>Greetings!</h2>

Answer:

B and E

Step-by-step explanation:

The rules of indicies states:

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So 3^{-8} ÷  3^{-4} =  3^{-8 - - 4} =  3^{-4}

So that means B is one of the correct answers.

To find the other correct value, you can divide the two fractions as stated in the question:

3^{-8} by 3^{-4} = \frac{1}{81}

81 is equivalent to 3⁴

So that means E is also correct.


<h2>Hope this helps!</h2>
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