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# scan0046 - 2 ‘2 Suppose that 10 of 40 laboratory guinea...

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Unformatted text preview: 2 ‘2. Suppose that 10 of 40 laboratory guinea pigs have been inoculated with a particular toxin causing liver enlargement. (a) When you select 6 pigs from the 40 pigs with replacement What is the probability that exactly 2 inoculated pigs have been chosen! (4 Wpoints) é ﬁiﬁgw‘f “:1 m)! 190‘“ {.52 F a ﬁll: \$9?- (Wile) (b) When you select 6 pigs from the 40 pigs withOUt replacement, What is the probability that exactly 2 inoculated pigs have been chosen? (4 points) H,,«v;vb3m‘ C a , wi— mek w 3 ﬁg"; cw it (c) What is the probability that the sixth guinea pig chosen is the ﬁrst with an enlarged liver, when you select the pigs with replacement? (3 points) AEe'N-al’y’fi m g, at?) (d) What is the probability that you must sacriﬁce exactly nine/guinea pigs to ﬁnd (Eye with enlarged liveis? (4 points) , W i 2;; i»: I» j/ 33,, ...
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