1)Suppose Z∼N(0,1) and that P(Z≤-a)=0.0132. Determine the value of a. 2)A courier company based in Vanderbijlpark has found that the time to deliver parcels to their clients is normally distributed with a mean of µ=80 minutes and standard deviation of σ=20 minutes. What is the probability that a randomly selected parcel will take more than 120 minutes to be delivered to the client?

1)Suppose Z∼N(0,1) and that P(Z≤-a)=0.0132. Determine the value of a. 2)A courier company based in Vanderbijlpark has found that the time to deliver parcels to their clients is normally distributed with a mean of µ=80 minutes and standard deviation of σ=20 minutes. What is the probability that a randomly selected parcel will take more than 120 minutes to be delivered to the client?

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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