The time needed to complete a math examination is bell-shaped with a mean of 120minutes and a standard deviation of 5 minutes.a) What percentage of students will complete the exam in 105 minutes or less?b) Assume that the class has 200 students and that the examination period is 130minutes in length. How many students do you expect will not be able to complete theexam in the allotted time? Round answer to the nearest whole number.C) A student is classified as extremely "efficient" if the amount of time spent on theexam is the lowest 2.5% for the distribution. What is the upper limit for the time it takesan extremely "efficient" student to finish the exam?minutes

Solution-: Given: μ=3120min,σ=5min We find, (a) What percentage of students will complete the exam…

Answered: The time needed to complete a math…

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...

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