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.
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section: Chapter Questions
Problem 14T: An unbalanced coin is weighted so that the probability of heads is 0.55. The coin is tossed ten...
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Question
![NORMAL DISTRIBUTION
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 Ros Laju'. By using
normal approximation find the probability that more than 50 letters reach its
destination within 24 hours.
10) A fair coin is toss 100 times. By using normal approximation, find the probability that
less than 35 head are obtained.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd1539f86-33ac-480b-9e75-895add5cfe1e%2F21d49c95-c2be-4978-adb8-6cb4cef23014%2Fatuzbdf_processed.png&w=3840&q=75)
Transcribed Image Text:NORMAL DISTRIBUTION
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 Ros Laju'. By using
normal approximation find the probability that more than 50 letters reach its
destination within 24 hours.
10) A fair coin is toss 100 times. By using normal approximation, find the probability that
less than 35 head are obtained.
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