Answer:
answer is 1/7
Explanation:
Given that there were some orange balls in a bag.
The probability of choosing two orange balls without replacement is 1/35 , and the probability of choosing one orange ball is 1/5 .
We have to find out the probability of drawing a second orange ball, given that the first ball is orange
Let A - I ball orange
B = II ball orange
Then P(AB) = 1/35 (given)
P(A) = 1/5 (given)
The probability of drawing a second orange ball, given that the first ball is orange = P(B/A)
=P(AB)/P(A)
= 1/35 divided by 1/5
= 1/7
answer is 1/7