Suppose that the amount of time that takes place for the Bureau of Internal Revenue(BIR) to send refunds to taxpayers is normally distributed with a mean of 14 weeks and a standard deviation of 4 weeks. a. What proportion of taxpayers should get a refund within 8 weeks? b. How long will it take before 70% of taxpayers get their refund

Suppose that the amount of time that takes place for the Bureau of Internal Revenue(BIR) to send refunds to taxpayers is normally distributed with a mean of 14 weeks and a standard deviation of 4 weeks. a. What proportion of taxpayers should get a refund within 8 weeks? b. How long will it take before 70% of taxpayers get their refund

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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