STAT_201_R4

# STAT_201_R4 - STAT201Recitation Week 4: Quiz 5 & 6...

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STAT 201 Recitation Week 4: Quiz 5 & 6

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Quiz 5 Question 1 he random variable, which describes the "time between  customer arrivals at a retail store," is an example of  __________.  fixed variable  continuous random variable  discrete random variable  sample random variable
Q 2 he mean or expected value of the distribution of a discrete  random variable is __________. he average of all possible values of the random variable he sum of the probabilities of the possible values of the  random variable he sum of all possible values of the random variable he sum of the product of each possible value of the random  variable and its probability

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Q 3 he variance of the distribution of a discrete random variable  is __________. he sum of the probabilities of the possible values of the  random variable he sum of the squared deviations from the mean for each  possible value of the random variable he sum of the product of the squared deviation from the  mean for each possible value of the random variable and  its probability
Q 4 he number of defectives in samples of 30 units taken  periodically from the output of a machine that has a 5%

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## This note was uploaded on 09/26/2011 for the course STAT 201 taught by Professor Drex during the Spring '04 term at Drexel.

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STAT_201_R4 - STAT201Recitation Week 4: Quiz 5 & 6...

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