Question

A bag contains 5 white and 7 red balls. One ball is drawn at random. What is the
probability that ball drawn is white?

Answer 1

Total no. of possible outcomes = 12 {5 white, 7 red}

E ⟶ event of drawing white ball.

No. of favorable outcomes = 5 {white balls are 5}

Probability, P(E) =`"No.of favorable outcomes"/"Total no.of possible outcomes"`

P(E) =5/12