Question

Daniel recorded the ages of the students in two of his classes below.

Class I: 14, 15, 15, 16, 16, 16, 17, 17, 18
Class II: 13, 14, 15, 16, 16, 17, 18, 18, 19

Which statement about Class II is true?
A
The mean of Class II is smaller than Class I, and the median is larger.

B
The mean of Class II is smaller than Class I, and the median is the same.

C
The mean of Class II is larger than Class I, and the median is larger.

D
The mean of Class II is larger than Class I, and the median is the same.

Answer 1

The mean of class one is 15.
The median of class one is 16.

The mean of class two is about 16.
The median of class two is 16.

Therefore, the answer is D. The mean of class two is larger than class one and the median is the same.

Answer 2

The statement (D) the mean of Class II is larger than Class I, and the median is the same is correct.

What is mean?

It is defined as the single number that represents the mean value for the given set of data or the closed value for each entry given in the set of data.

We have two data set:

Mean for class I:

Mean = (14+15+15+16+16+16+17+17+18)/9

Mean(I) = 144/9 = 16

Median(II) = 16

Mean for class II:

Mean = 146/9

Mean(II) = 16.22

Median(II) = 16

Thus, the statement (D) the mean of Class II is larger than Class I, and the median is the same is correct.

Learn more about the mean here:

https://brainly.com/question/22871228

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