want an explanation why w=10 how we can know it

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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I want an explanation why w=10 how we can know it 

(iii). For 4 minute period,
A = 0.05*4 = 0.2
P(x>w) = 0.0487
P(x<=w) = 0.9513
P(x<=10) = 0.9513
therefore w =
10
Transcribed Image Text:(iii). For 4 minute period, A = 0.05*4 = 0.2 P(x>w) = 0.0487 P(x<=w) = 0.9513 P(x<=10) = 0.9513 therefore w = 10
Expert Solution
Step 1

Given that

P(x > w) = 0.0487

P(x ≤ w) = 0.9513

P(x ≤ 10) = 0.9513

 

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