Question

In a group of 140 adults 92 watch tennis 81 play a sport and 40 do neither find the probability that an adult chosen at random from those who watch tennis does not play a sport

Answer 1

Step-by-step explanation:

Given In a group of 140 adults 92 watch tennis 81 play a sport and 40 do neither find the probability that an adult chosen at random from those who watch  tennis does not play a sport

• Given A group of adults are 140, 92 of them watch tennis, 81 play a sport and 40 of them do neither.
• We need to find the probability that an adult chosen at random from those who watch tennis does not play a sport.
• Now 92 of them watch tennis so probability will be 92 / 140
• Those who do not play a sport will be 140 – 81 / 140
•                                                                  = 59 / 140
• Those who watch tennis but do not play a sport will be 92 / 140 x 59 / 140
•               = 1357 / 4900

Reference link will be

https://brainly.in/question/15716115

Answer 2

Answer:

$\frac{10}{23}$

Step-by-step explanation:

It is said that adult is chosen at random from those who watch tennis: which means out of 92, does not play a sport. It is then 40 out of 92:

$\frac{40}{92}=\frac{10}{23}$