A senior high student commutes daily from home to school. The average time for one way. trip is 20 minutes, with a standard deviation of 4 minutes. Assuming that the distribution of the trips is normally distributed, what is the probability of a trip that will take at least a quarter of an hour? A B 89.44% 99.38% 10.54% 95.99 %

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
icon
Related questions
Question
Please answer within 30min thanks
A senior high student commutes daily from home to school. The average time for one way.
trip is 20 minutes, with a standard deviation of 4 minutes. Assuming that the distribution of
the trips is normally distributed, what is the probability of a trip that will take at least a
quarter of an hour?
A
B
D
89.44%
99.38%
10.54%
95.99 %
Transcribed Image Text:A senior high student commutes daily from home to school. The average time for one way. trip is 20 minutes, with a standard deviation of 4 minutes. Assuming that the distribution of the trips is normally distributed, what is the probability of a trip that will take at least a quarter of an hour? A B D 89.44% 99.38% 10.54% 95.99 %
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON