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The average time spent on a homework assignment is 80 minutes with a standard deviation of 18 minutes. Assume times are normally distributed. Jim spent 102 minutes on a homework and found his Z score to be 1.22. What proportion of students spent less time than Jim on the homework? That is compute P(Z<1.22). Round your answer to 4 decimals.

The average time spent on a homework assignment is 80 minutes with a standard deviation of 18 minutes. Assume times are normally distributed. Jim spent 102 minutes on a homework and found his Z score to be 1.22. What proportion of students spent less time than Jim on the homework? That is compute P(Z<1.22). Round your answer to 4 decimals.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter10: Measurement, Area, And Volume
Section10.8: Volumes Of Pyramids And Cones
Problem 16E
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The average time spent on a homework assignment is 80 minutes with a standard deviation of 18 minutes. Assume times are normally distributed. Jim spent 102 minutes on a homework and found his Z score to be 1.22. What proportion of students spent less time than Jim on the homework? That is compute P(Z<1.22). Round your answer to 4 decimals.
Transcribed Image Text:The average time spent on a homework assignment is 80 minutes with a standard deviation of 18 minutes. Assume times are normally distributed. Jim spent 102 minutes on a homework and found his Z score to be 1.22. What proportion of students spent less time than Jim on the homework? That is compute P(Z<1.22). Round your answer to 4 decimals.
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