I need help with question that i got incorrect

Video Viewing Platform Preferred Viewer Age Mobile/Laptop Device TV Screen Row Total 18-34 40 23 63 35-54 12 12 24 55+ 5 8 13 Column Total 57 43 100

Find the following probabilities or percentages:

(a) Probability that a viewer is aged 18-34. (Round your answer to 2 decimal places.)

Probability 0.63 0.63 Correct

(b) Probability that a viewer prefers watching videos on a TV screen. (Round your answer to 2 decimal places.)

Probability 0.43 0.43 Correct

(c) Percentage of viewers who are 18-34 and prefer videos on a mobile or laptop device.

Percentage of viewers 40 40 Correct %

(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 63.00 63.00 Incorrect %

(e) Percentage of viewers who are 35-54 or prefer videos on a mobile or laptop device.

Percentage of viewers Incorrect % 12