A ball is drawn randomly from a jar that contains 6 red balls, 2 white balls, and 5 yellow balls. Find the probability of the given event.

Question

A ball is drawn randomly from a jar that contains 6 red balls, 2 white balls, and 5 yellow balls. Find the probability of the given event.

a. A red ball is drawn

b. A white ball is drawn

Answer 1

(a)

 

P(red) = (number of red balls)/(total number of balls)

P = 6/(6 + 2 + 5) = 6/13 

 

(b)

 

P(white) = (number of white balls)/(total number of balls)

 

Assuming no ball has been drawn yet,

 

P = 2/13