Question

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

ideo Viewing Platform Preferred
Viewer Age	Mobile/Laptop Device				TV Screen				Row Total
18–34		30				38				68
35–54		10				10				20
55+		3				9				12
Column Total		43				57				100

Find the following probabilities or percentages:

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

Probability            

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

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

Percentage of viewers             %

(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             %

Probability            

Answer 1

ANSWER::

ideo Viewing Platform Preferred
Viewer Age	Mobile/Laptop Device		TV Screen		Row Total
18–34		30	38		68
35–54		10	10		20
55+		3	9		12
Column Total		43	57		100

a) The probability that a viewer is aged 18–34

ANS:: 68/100 = 0.68

b) The probability that a viewer prefers watching videos on a TV screen =

ANS:: 57/100 = 0.57

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

ANS:: 30/100 * 100 = 30%

d) Percentage of viewers given they are 18–34 who prefer videos on a mobile or laptop device

ANS:: 30/100 * 100 = 30%

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

10/100*100 = 10%

NOTE:: I HOPE YOUR HAPPY WITH MY ANSWER....***PLEASE SUPPORT ME WITH YOUR RATING...

***PLEASE GIVE ME "LIKE"...ITS VERY IMPORTANT FOR ME NOW....PLEASE SUPPORT ME ....THANK YOU