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I would like you to finish it in 2 hours. If a distribution is symmetric, the most appropriate measure of variation is theMedianStandard deviationIQRpercentileFlag this QuestionQuestion 24pts If a distribution is skewed and n=100, the sample mean will follow a distribution that is mostlybell-shaped.skewed.uniform.none of the above.Flag this QuestionQuestion 34pts If X is binomially distributed with n = 20 and p = .9, the distribution isskewed.bell-shaped.neither skewed nor bell-shaped.unknown.Flag this QuestionQuestion 44pts If we want to plot one continuous variable and have 100 observations, the most appropriate plot is ascatterplot.stem and leaf plot.bar chart.histogram.Flag this QuestionQuestion 54pts If two events are independent, they are not mutually exclusive.TrueFalseFlag this QuestionQuestion 64pts If the slope is negative, the correlation coefficient is negative.TrueFalseFlag this QuestionQuestion 74pts As the sample size increases, the variation in the sample meanincreases.decreases.remains constant.does none of the above.Flag this QuestionQuestion 84pts A proportion must be between __ and __.zero and infinity.zero and one.one and infinity.negative infinity and infinity.Flag this QuestionQuestion 94pts IQs in Bubba City are normally distributed with a mean of 100 and a standard deviation of 16. What is the probability that a randomly selected resident has an IQ below 124?0.93320.06680.8413none of the aboveFlag this QuestionQuestion 104pts IQs in Bubba City are normally distributed with a mean of 100 and a standard deviation of 16. If BUBSA selects only IQs in the top 2% of all Bubba City residents, what is the lowest IQ that will earn membership in BUBSA?13313014867Flag this QuestionQuestion 114pts IQs in Bubba City are normally distributed with a mean of 100 and a standard deviation of 16. Suppose we randomly select 64 Bubba City residents. What is the probability that the sample average IQ will exceed 105?0.99380.00620.62170.3783Flag this QuestionQuestion 124pts In #11, suppose that IQs in Bubba City are NOT normally distributed. Your answer remains valid.TrueFalseFlag this QuestionQuestion 134pts Tiffani-Heather is studying for the actuarial exams. There are ten exams, and the probability that she will pass a given exam is 0.8. The expected number of exams she will pass is0.8.8.80.none of the above.Flag this QuestionQuestion 144pts Tiffani-Heather is studying for the actuarial exams. There are ten exams, and the probability that she will pass a given exam is 0.8. What is the probability that she will pass exactly 8 of the exams?0.30200.62420none of the aboveFlag this QuestionQuestion 154pts Tiffani-Heather is studying for the actuarial exams, and the probability that she will pass a given exam is 0.8. Suppose she takes 100 actuarial exams. What is the probability that she will pass at least 68?0.99870.00130.67190.3281Flag this QuestionQuestion 164pts We randomly selected 36 students in Mavis Masterful Manuscripts to take a typing speed test. The possible score range is 0-100. The average score on the test was 72, and the standard deviation for the POPULATION is 6. The appropriate confidence interval uses az-value.t-value.binomial value.none of the above.Flag this QuestionQuestion 174pts In #16, for a 95% confidence interval, the margin of error =0.98.3.92.1.96.None of the above.Flag this QuestionQuestion 184pts In #16, if the population standard deviation had NOT been known, we would have used at confidence interval for the mean.z confidence interval for the mean.method not covered in class.none of the above.Flag this QuestionQuestion 194pts The probability Michelle will win a tennis match is 0.8, and the probability her friend Dave will win one is 0.7. If their winning matches is independent of each other, the probability that both Michelle and Dave will win their next match is1.5.0.94.0.44.0.56.Flag this QuestionQuestion 204pts The probability Michelle will win a tennis match is 0.8, and the probability her friend Dave will win one is 0.7. If their winning matches is independent of each other, the probability that either Michelle or Dave will win their next match is1.5.0.94.0.44.0.56.Flag this QuestionQuestion 214pts The probability Michelle will win a tennis match is 0.8, and the probability her friend Dave will win one is 0.7. If their winning matches is independent of each other, the probability that neither Michelle nor Dave will win their next match is1.5.0.94.0.44.0.56.Flag this QuestionQuestion 224pts For the following data set, find the sample mean. 12, 14, 16, 13, 1514705None of the aboveFlag this QuestionQuestion 234pts For the following data set, find the sample median. 12, 14, 16, 13, 15161413None of the aboveFlag this QuestionQuestion 244pts For the following data set, find the sample standard deviation. 12, 14, 16, 13, 151.582.510None of the aboveFlag this QuestionQuestion 254pts To get 4 points, check "True".TrueFalse

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