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OpenStudy (anonymous):
help with the question below please
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OpenStudy (anonymous):
Eight white balls and twenty black balls are in a bag. What is the probability of drawing a black ball in one draw? 1 2/5 5/7
ganeshie8 (ganeshie8):
you figured out the first problem ?
OpenStudy (anonymous):
yep
OpenStudy (anonymous):
is the second one 2/5?
ganeshie8 (ganeshie8):
nope, just take the ratio of black balls and total balls
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ganeshie8 (ganeshie8):
number of black balls = 20 total number of balls = 28 take the ratio
OpenStudy (anonymous):
oh so its 5/7?
ganeshie8 (ganeshie8):
Yes!
OpenStudy (anonymous):
thnx:)
ganeshie8 (ganeshie8):
yw
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