Bowl Green
Posted in Art Pottery on 08/17/2010 11:57 pm by adminA bowl contains 10 green balls and 15 white balls. I want to select 5 balls at random without replacement?
Find the probability that one 5 green balls. Report your answer with 3 decimals.
It is easier to calculate the probability that you shoot five balls are all white, and then use the formula (E) = P 1 - P (BN) Thus the calculation of the possibility that you draw a white ball every time: 15/25 * 14/24 * 13/23 * 11/21 * 12/22 multiply all the fractions together and you get the chance to draw all the white balls. Then subtract the result from 1, to obtain the probability at least one of the balls is green.