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

viewer ate mobil laptop device tv screan row total

18-34 33 25 58

35-54 13 13 26

55+ 5 11 16

column total 51 49 100

a) probability that a viewer is aged 18-34 ( round 2 decimals) probability_________________

b) probability that a viewer perfers watching videos on tv screen ( round 2 decimals

probability_______________________

c) percentage of viewers who are 18-34 and prefer videos on mobile or laptop device

percentage of viewers ________________________%

d) [percentage pf viewers giving they are 18-34 who prefer videos on a mobile or laptop device (round 2 decimals) percentage of viewers__________________%

e) percentage of viewers who are 35-54 or prefer videos on mobile or laptop device

percentage of viewers _____________________%