Question

The graph represents the normal distribution of recorded weights, in pounds, of cats at a veterinary clinic.

Which weights are within 2 standard deviations of the mean? Check all that apply.

8.4 lbs

8.9 lbs

9.5 lbs

9.8 lbs

10.4 lbs

10.9 lbs

Answer 1

Answer: B C D

Explanation:

Answer 2

The weights within this range are:

8.9

9.5

9.8

10.4

Explanation:

The graph represents the normal distribution with a mean of 9.5 and a standard deviation of 0.5. Therefore, the range of the values within 2 standard deviations is:

9.5 - 2(0.5) ≤ x ≤ 9.5 + 2(0.5)

8.5 ≤ x ≤ 10.5