Tuesday
July 29, 2014

Homework Help: statistics

Posted by Emily on Tuesday, December 7, 2010 at 5:11pm.

An Urn contains 7 red and 3 white balls. Two balls are drawn in succession without replacement. If the second ball is white, what is the probability that the first ball was white?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

statistics - An urn contains white and red balls. Four balls are randomly drawn ...
statistics - An urn contains white and red balls. Four balls are randomly drawn ...
MATH(STATISTICS) - Urn A contains R red balls and W white balls, urn B contains ...
MATH - Urn A contains six white balls and three black balls. Urn B contains ...
maths - urn contains 4 white and 6 red rolls. Four balls are drawn at random (...
College Discrete - An urn contains n > 0 white balls and m > 0 black ...
MATH - An urn contains 8 pink and 7 red balls. 6 balls are randomly drawn from ...
Math (Probability) - An urn A contains 6 white balls and 7 black balls. And urn ...
Math (Probability) - An urn A contains 6 white balls and 7 black balls. And urn ...
Math - "In vase A, there are 3 red balls and 5 white balls. In vase B, there are...

Search
Members