combinations 8-1,2,3 - StudentOfFortune.com

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falcon6
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$1.00 combinations 8-1,2,3

From Mathematics: Combinatorics , Mathematics: Probability
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Due on May. 17, 2009
Asked on May 14, 2009 at 12:20:49PM

Q:
A. In how many ways can 6 shuttle vans line up at the airport?

Answer: 720

B. In how many ways can a sample of 3 oranges be taken from
a bag of a dozen oranges?

Answer: 220

C. In how many ways can 2 pictures, selected from a group of
5 different pictures, be arranged in a row on a wall?

Answer: 20

I just need help with the steps. thanks

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mathandphysicsprofes
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Posted on May 14, 2009 at 12:30:14PM

A:
Preview: ... ns line up at the airport? 6!=6*5*4*3*2*!=720 Answer: 720 B. In how many ways ca ...

The full tutorial is about 64 words long .

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StatisticsSolver
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$1.00 Steps shown clearly using equation editor ( word document attached)

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Posted on May 14, 2009 at 12:37:56PM

A:
Preview: ... pls refe ...

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b_h

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Posted on May 14, 2009 at 12:38:00PM

A:
Preview: ... ces for the second van, 4 choices for the third once the first two are selected, etc down to 1. Then by the pro ...

The full tutorial is about 120 words long .

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bibhupada
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Posted on May 14, 2009 at 12:40:37PM

A:
Preview: ... rrange. arrangement means permutation. so 2 pictures out of 5 pictures can be arranged in (5 p 2 )ways = 5!/(5-2)! (because n p r = n!/(n-r)!) = 5!/3! = 5*4*3!/3! ...

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physicsguy
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$0.25 Here you go. explanations

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Posted on May 14, 2009 at 12:41:09PM

A:
Preview: ... replacing any is: n!/ ( k! (n-k)! ) or in your case: 12! / ( 3! * 9! ) = 220. C. The number of way ...

The full tutorial is about 105 words long .

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math_tutor
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Posted on May 14, 2009 at 1:16:31PM

A:
Preview: ... attache ...

The full tutorial is about 7 words long plus attachments.

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