A random variable isa. any phenomenon in which outcomes are equally likely.O b. a hypothetical list of the possible outcomes of a random phenomenon.O c. any number that changes in a predictable way in the long run.a variable whose value is a numerical outcome associated with a random phenomenon.d. A small store keeps track of the number X of customers that make a purchase during the first hour that thestore is open each day. Based on the records, X has the following probability distribution.4.P(X)0.10.10.10.10.6The mean number of customers that make a purchase during the first hour that the store is open is:а. 2.9O b. 2.5О с. 2.0O d. 3.0

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Answered: A small store keeps track of the number…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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In order to verify the accuracy of their financial accounts, companies use auditors on a regular basis to verify accounting entries. The company's employees make erroneous entries 5% of the time. Suppose that an auditor randomly checks three entries. a Find the probability distribution for Y, the number of errors detected by the auditor. b Construct a probability histogram for p(y). C Find the probability that the auditor will detect more than one error.
The graph summarizes statistics regarding distracted drivers below the age of 40 who were involved in fatal crashes. Assume that a driver is selected at random from the 2,888 tallied. If the accident was not related to cell phone use, what is the probability that the driver was between the ages of 20 and 29.
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Answer number 11.

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