b) At least 1 wrong call tor

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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10. Every day the average number of wrong numbers received by a certain mail-order house is two.What
is the probability that this house receives
a) 3 wrong calls tomorrow?
b) At least 1 wrong call tomorrow?
Transcribed Image Text:10. Every day the average number of wrong numbers received by a certain mail-order house is two.What is the probability that this house receives a) 3 wrong calls tomorrow? b) At least 1 wrong call tomorrow?
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