the Contingency table below shows the results of a survey of video viewing habits by age.

Viewer Age Mobile/Laptop Device TV Screen Row Total

18-34 32 28 60

35-54 14 14 28

55+ 4 8 12

Column Total 50 50 100

Find the following probabilities or Percentages:

a. Probability that a viewer is 18-34. (round your answer to 2 decimals place.)

b. Probability that a viewer prefers watching videos on a TV screen. (round your answer to 2 decimals place.)

c. Percentage of views who are 18-34 and prefer videos on mobile or laptop device.

d. Percentage of views given they are 18-34 who prefer videos on mobile and laptop devices. (round your answer to 2 decimals place.)

e. Percentage of views who are 35-54 or prefer video on mobile or laptop device.