I need help with this probability
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I need help with this probability

[From: ] [author: ] [Date: 12-08-02] [Hit: ]
4 = 0.I hope this information was very helpful.......
John's school bag has 7 pens, 8 pencils, and 4 markers.

A. ) Find the probability that he will pick a pencil AND a marker AND a pen if there is REPLANCEMENT after each draw.

B.) If two items are drawn in succession (without replacement) what is the probability the first item is a marker and the second itme is a pencil.

C.) What is the probability if two items are drawn (with replacement) the two itmes are both pencils?



new problem

9.) Given P(M) = 0.3, P(N) = 0.4, and events M and N are mutually exclusive.

Find P(M and N)

Find P(M or N)

-
Solve the following

A) 8/19 * 4/19 * 7/19

B) 4/19 * 8/18

C) 8/19 * 8/19

9) P(M & N) = 0.3 * 0.4 = 0.12
P(M or N) = 0.3 + 0.4 = 0.7

I hope this information was very helpful.
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