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# Three marksmen shoot a target with according probabilities

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SVP
Joined: 03 Feb 2003
Posts: 1609
Followers: 6

Kudos [?]: 75 [0], given: 0

Three marksmen shoot a target with according probabilities [#permalink]  09 Oct 2003, 00:33
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Three marksmen shoot a target with according probabilities of 0.9, 0.7, and 0.6. Find the probability that exactly two will miss.
Manager
Joined: 13 Aug 2003
Posts: 68
Location: India
Followers: 1

Kudos [?]: 1 [0], given: 0

2 ppl can miss if
AB miss C hits
A hits BC miss
B Hits and AC miss

multiplying all combinations I got .154

cheers
neeraj
CEO
Joined: 15 Aug 2003
Posts: 3469
Followers: 61

Kudos [?]: 701 [0], given: 781

Re: PS: 3 marksmen [#permalink]  09 Oct 2003, 05:08
stolyar wrote:
Three marksmen shoot a target with according probabilities of 0.9, 0.7, and 0.6. Find the probability that exactly two will miss.

0.9*0.3*0.4 + 0.1*0.3*0.6 + 0.1*0.7*0.4

0.108 + 0.018 + 0.028 = 0.154

correct?

thanks
praetorian
Re: PS: 3 marksmen   [#permalink] 09 Oct 2003, 05:08
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