SOLUTION: A box contains 7 red balls and 3 black balls. Two balls are drawn. What is the probability of drawing:
(a)a red ball, followed by a black ball, assuming that you replace the fir
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-> SOLUTION: A box contains 7 red balls and 3 black balls. Two balls are drawn. What is the probability of drawing:
(a)a red ball, followed by a black ball, assuming that you replace the fir
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Question 667908: A box contains 7 red balls and 3 black balls. Two balls are drawn. What is the probability of drawing:
(a)a red ball, followed by a black ball, assuming that you replace the first ball before drawing the second?
(b)a black ball on each draw, if the first ball drawn is black (assuming there is no replacement) Found 2 solutions by ewatrrr, act417:Answer by ewatrrr(24785) (Show Source):
Hi,
A box contains balls: 7 red balls and 3 black balls.
Two balls are drawn.
with replacement
P(red than black) =
without replacement
P(black than black) =
(