Question

5. A survey of 500 families was conducted to know their opinion about a particular detergent powder. If 375 families liked the detergent powder and the remaining families disliked it, find the probability that a family chosen at random (1) Likes the detergent powder (ii) Does not like it ​

Answer 1

Answer:

if 375 like it, that means that 125 dont like it. Thus probability of picking a family who likes it is given by favorable outcomes/total outcomes= 375/500 = 0.75

and

probability of not liking it is 1- probability of liking it =

1 - 0.75= 0.25

or we can also find it directly by 125/500 = 1/4 = 0.25