Question

Find the.

(a) Probability of the pointer stopping on D in ?

(b) Probability of getting an ace from a well shuffled deck of 52 playing cards?

(c) Probability of getting a red apple. (See figure below)

Answer 1

(i)

The pointer can stop at one of the following regions.

A, A, B, C, D

Out of these 5 cases, it is possible only in 1 case that the pointer will stop at region D.

Therefore, probability that the pointer will stop at region D = $\frac{1}{5}$

(ii) There are 52 cards in a deck of cards and there are 4 ace cards in 1 deck of cards.

Probability of getting an ace card = $\frac{4}{52}=\frac{1}{13}$

(iii)

There are a total of 7 apples, out of which, 4 are red and 3 are green.

Probability of getting a red apple = $\frac{4}{7}$