White (W) Black (B) Column Total Smoking by Race for Males Aged 18 to 24 Smoker (S) Nonsmoker (N) 553 150 703 iP(S) ii P(W) iP(SW) iv P(SIB) v P(S and W) vi P(N and B) 259 38 297 Row Total 812 188 1,000 Click here for the Excel Data File (a) Calculate the probabilities given below: (Round your answers to 4 decimal places.)

In this problem, we explore the effect on the mean, median, and mode of adding the same number to each data value. Consider the data set 4, 4, 5, 8, 12.   (a) Compute the mode, median, and mean. (Enter your answers to one decimal place.) mode   median       mean   (b) Add 3 to each of the data values. Compute the mode, median, and mean. (Enter your answers to one decimal place.) mode   median       mean

Please see attachment below

The contingency table below shows the results of a survey of video viewing habits by age.      Video Viewing Platform Preferred     Viewer Age Mobile/Laptop Device   TV Screen   Row Total 18–34 40   28   68             35–54 9   9   18             55+ 5   9   14             Column Total 54   46   100                Find the following probabilities or percentages:  (d) Percentage of viewers given they are 18–34 who prefer videos on a mobile or laptop device. (Round your answer to 2 decimal places.) Percentage of viewers             % (e) Percentage of viewers who are 35–54 or prefer videos on a mobile or laptop device. Percentage of viewers             % check_circle