A bag contains 4 blue balls, 7 yellow balls and 4 white balls. Event A is defined as drawing a blue ball on the first draw and event B is defined as

drawing a white ball on the second draw. If two balls are drawn from the bag, one after the other and not replaced,

what is P (B|A) expressed in simplest form?

Question

Mathematics

Urijah Carey

13 May, 07:03

A bag contains 4 blue balls, 7 yellow balls and 4 white balls. Event A is defined as drawing a blue ball on the first draw and event B is defined as

drawing a white ball on the second draw. If two balls are drawn from the bag, one after the other and not replaced,

what is P (B|A) expressed in simplest form?

+4

Answers (1)

Know the Answer?

Lilian Ortega · Answer 1

4/14 or 29%

Step-by-step explanation:

So p (B|A) basically means that we are finding the probability of b now that a has already happened.

In this scenario once a has happened, there are 3 blue balls, 7 yellow, and 4 white so the probability is 4/14 which is approximately 29%