An auditor randomly chooses 5 tax returns from a list that consists of 15 tax returns. In the list, are 9 illegal deductions and 6 have no illegal deductions. i. Find the pmf for X (the # of returns that have llegal deductions) ii. Find CDF of X. iii. Use pmf and CDF to find P (2 ≤ x ≤ 4). Show work.

An auditor randomly chooses 5 tax returns from a list that consists of 15 tax returns. In the list, are 9 illegal deductions and 6 have no illegal deductions. i. Find the pmf for X (the # of returns that have llegal deductions) ii. Find CDF of X. iii. Use pmf and CDF to find P (2 ≤ x ≤ 4). Show work.

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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Question

An auditor randomly chooses 5 tax returns from a list that consists of 15 tax returns. In the list, are 9 illegal deductions and 6 have no illegal deductions.

i. Find the pmf for X (the # of returns that have llegal deductions)

ii. Find CDF of X.

iii. Use pmf and CDF to find P (2 ≤ x ≤ 4). Show work.

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