The time it takes Jessica to bicycle to school is normally distributed with mean 15 minutes and variance 4. Jessica has to be at school at 8:00 am. Suppose you saw her at class, and she said it took her 23 minutes to get to school that day. Which of the following is a reasonable inference or conclusion?

A Twenty-three minutes to school is not an unusually long commute time

B A commuting time of 23 minutes is highly unusual or atypical.

C The distribution of commute times must not be normal with mean 15 minutes and standard deviation 2 minutes.

D Both (b) and (c) are feasible conclusions.

E Both (a) and (c) are feasible conclusions.

## Answers (1)

E