Question

From a bag containing 8 white and 5 black balls four balls are drawn one by one without replacement find the probability that exactly two of them are white.

Answer 1

Heya mate!!

Total no. of balls = 13

Total balls in the bag =8+5=13

Let S be the event of drawing 2 balls from 13 balls. n(S)=

13

C

2

Let E be the event of drawing 2 white balls from 5 white balls. n(E)=

5

C

2

∴P(E)=

13

C

2

5

=

13×125×4= 395

Answer 2

Answer: which subject is it from a bag teeth white why black I think

Step-by-step explanation: 5 should be