a set of quiz scores is shown in the histogram below. the mean of the data set is 6.625 and the population standard deviation is

Question

1 year ago

8

1.9 How many numbers in the data set are within 1 standard deviation of the mean? a)7 b)10 c)12 d)13

1 answer:

borishaifa [10] · Answer 1 · 2024-02-27T14:45:48+03:00

Given

Mean = 6.625

Standard Deviation = 1.9

Values within 1 standard deviation of mean, mean:

[tex]\begin{gathered} 6.625-1.9We look at the number of values at 5, 6, 7, and 8.

5 = 2 people

6 = 2 people

7 = 5 people

8 = 3 people

Total = 2 + 2 + 5 + 3 = 12 people

<h2>Answer</h2>

C