Question

A bag has 6 red balls and 4 green balls are selected at random from. What is probability 2 green and 2 red balls

Answer 1

total balls =6+4=10
1. probabilityof a 2 green balls=2/10=1/5
2.probabilityofa 2red balls=2/10=1/5

Answer 2

Answer:

Total number of ball= 6+4 =10balls

So n(s)=10

Number of ways red ball be selected=6c2ways

Number of way green ball be selected =4c2ways

Now,probanility of getting 2red and 2green balls =

4c2×6c2/10c4 {bcoz 4balls are to be selected from 10 balls}

={(4×3/2)×(6×5/2)}/10c4

=6×15/210

=90/210

=3/7

=0.428

Step-by-step explanation: