Question

21. A bag contain 2 red, 3 green, 2 blue balls. Two balls are drawn at random. What is the probability that no
bf the balls drawn is blue ...............​

Answer 1

Answer:

probability of drawing blue ball

2/2+3+2=2/7

Answer 2

Answer:

P(E)=2/7

=Improprer=7/2

= 7x6/2x1

=42/2

=21

P(E)= 2X 5/7X3

=10/21