ECH critical response 5 - Google DocsOX-Bin (1,0.25)Question 3A telephone survey uses a random digit dialing machine to call subjects. Therandom digit dialing machine is expected to reach a live person 25% of thetime. Let X be number of success in ten attempts.What is the probability of achieving at least one successful call?HINT: first find Pr (X=0) and note that Pr (X≥ 1) = 1 - Pr (X=0)Binomial probability formula:Pr (X=x) = nCx px qn-x where q-1-p0.9440.9840.90Gdid abraham lincoln believe in democracy - Goo...0.844Question 42.5 pts2.5 ptstv A

Solution-: Given: n=10,p=0.25 Let, X= Number of success in10 We want to find P(X≥1)=?

Answered: A telephone survey uses a random digit…

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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