Question
A lab has a population of 25 fruit flies, of which 5 are black and 20 are grey. a) A sample of 2 flies is
A lab has a population of 25 fruit flies, of which 5 are black and 20 are grey.
a) A sample of 2 flies is selected. Is the fact that the second selected fly is black independent of the first one being black?
(b) Suppose now that there are 10,000 flies in the lab, of which 2,000 are black and 8,000 are grey. A sample of 2 flies is selected. Is the fact that the second selected fly is black independent of the first one being black?
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Algebra And Trigonometry Enhanced With Graphing Utilities (Subscription)
Authors: Michael Sullivan, Michael Sullivan III
7th Edition
0134273842, 9780134273846
