A credit card company monitors cardholder transaction habits to detect any unusualactivity Suppase that the dollar value of unusual activity for a austomer in a month follows a normal distribution with mean $250 and variance $388. Round your intermediate.calculations and final answers to four decimal places (eg. 98.7654). (a} What is the probability of $250 to $294 in unusual activity in a month? P = (b) What is the probability of more than $294 in unusual activity in a month? P= i (c) Suppose that 10 customer accounts independently follow the same normal distribution. What is the probability that at least one of these customers exceeds $294 in unusual activity in a month?
A credit card company monitors cardholder transaction habits to detect any unusualactivity Suppase that the dollar value of unusual activity for a austomer in a month follows a normal distribution with mean $250 and variance $388. Round your intermediate.calculations and final answers to four decimal places (eg. 98.7654). (a} What is the probability of $250 to $294 in unusual activity in a month? P = (b) What is the probability of more than $294 in unusual activity in a month? P= i (c) Suppose that 10 customer accounts independently follow the same normal distribution. What is the probability that at least one of these customers exceeds $294 in unusual activity in a month?
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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Transcribed Image Text:A credit card company monitors cardholder transaction habits to detect any unusual activity Suppose that thedollar value of unusual
activity for a customer in a month follows a nomal distribution with mean $250 and variance $-388.
Round your intermediate calculations and final answers to four decimal places (eg. 98.7654).
(a) What is the probability of $250 to $294 in unusual activity in a month?
(b) What is theprobability of more than $294 in unusual activity in a month?
(d) Suppose that 10 customer accounts independently follow the same normal distriburion. What is the probability that at least one of
these customers exceeds $294 in unusual activity in a month?
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