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Question 105 / 5 pointsThe ________ of a discrete probability distribution measures the dispersion of each outcome of the random variable from the mean of the distribution.1) standard deviation2) media3) expected value4) rangneQuestion 115 / 5 pointsAssume that the number of pieces of junk mail per day that a person receives in their mail box follows the Poisson distribution and averages 3.5 pieces per day. What is the probability that this person will not receive any junk mail tomorrow?Question 125 / 5 pointsA company that bakes chocolate chip cookies averages 5.2 chocolate chips per cookie. Assume that the number of chocolate chips per cookie follows the Poisson distribution. What is the probability that a randomlyselected cookie will contain two or more chocolate chips?Question 135 / 5 points
According to LIMRA, 77% of husband-wife families with kids under 18 years old have life insurance. A randomsample of six husband-wife families was selected. What is the mean of this distribution?Question 145 / 5 pointsAccording to the Insurance Research Council, 14% of U.S. drivers are uninsured. A random sample of seven drivers was selected. What is the mean of this distribution?1) 0.982) 1.153) 1.644) 2.12