Question

What is the mean of the data set?

21.2, 15.3, 20.5, 16.8, 30.2

Question 1 options:

19.2


20.8


21.5

Answer 1

B. 20.8 (second option)

Explanation:

The mean is calculated by adding up their values, and then dividing them into elements of a set.

All of them should first be added together.

21.2+15.3+20.5+16.8+30.2

Solve.

`\sf{21.2+15.3+20.5+16.8+30.2=104}`

The sum of the data set is 104.

The number of terms in the data set is n=5.

Therefore, the mean of the data set is 20.8, which is our answer.

I hope this helps you! Let me know if my answer is wrong or not.