(e) the explanatory variable be plotted on the horizontal axis.8.Which of these statements about the standard deviationsis true?
9.The five-number summary of the distribution of scores on the final exam in Psych 001 last semester was18396276100.A total of 416 students took the exam.About how many students had scores above39?
10. The 5-number summary for a univariate data set is given by{min = 5,1Q= 18, Med = 20,3Q= 40, max = 75}.If you wanted to construct a modified boxplot for thedataset (that is, one that would show outliers, if any existed), what would be the maximum possible lengthof the right side “whisker”?
11.Which of the following is likely to have a mean that is smaller than the median?(a)The salaries of all National Basketball Association players.(b) Amounts awarded by juries from lawsuit involving injuries.(c ) The prices of homes in a large city.(d) The long distance race in which most runners took a long time but a few finished it rather quickly.(e)The scores of students (out of 100 points) on a very easy exam in which most get nearly perfect scoresbut a few do very poorly.
12. A biologist has gathered data on a population of bears in the forests of the northeast. A frequency polygonplot of the weights of the sample of bears and their sex is given below.Based on the plot, which statementbelow is TRUE?WeightFrequency48040032024016080014121086420FemaleMaleSex of BearWeights of Bears
