9) In a country, the probability of a letter posted by Pos Laju' will reach its destination within 24 hours is 0.2. Assume that 200 letters are posted by Pos Laju'. By using normal approximation find the probability that more than 50 letters reach its destination within 24 hours.
9) In a country, the probability of a letter posted by Pos Laju' will reach its destination within 24 hours is 0.2. Assume that 200 letters are posted by Pos Laju'. By using normal approximation find the probability that more than 50 letters reach its destination within 24 hours.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section: Chapter Questions
Problem 27T
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