Question

A radio jockey selects music for a radio programme. She can choose a
song from eight rock songs, three classical songs and four filmy songs.
a. What is the probability that she chooses a rock song?
b. What is the probability that she does not choose a filmy
song?
c. What is the probability that she chooses a folk song?

Answer 1

Question :-

A radio jockey selects music for a radio programme. She can choose a song from eight rock songs, three classical songs and four filmy songs.

a. What is the probability that she chooses a rock song?

b. What is the probability that she does not choose a filmy

c. What is the probability that she chooses a folk song?

Given :-

Their are eight rock songs, three classical/folk songs and four filmy songs.

What to find :-

Probabilities according to question.

Solution (a) :-

What is the probability that she will choose Rock song?

:- there are eight rock songs

First we have to find the sum of all songs:-

so, 8+3+4 = 15

PROBABILITY:- 8/15

(B) :-

What is the probability that she does not choose a filmy song?

Their are four filmy songs:- 4

Total songs:- 15

So, 4/15 is the probability that she will not choose filmy songs.

(c) :-

What is the probability that she will chooses a folk/classical song?

Their are four classical/folk songs:- 3

Total songs:- 15

So, 3/15 or 1/5

Answers :-

1. 8/15
2. 4/15
3. 3/15 or 1/5

Answer 2

Answer

1. 8/ 15
2. 4/ 15
3. 3/15 or 1/5