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3 years ago

NCr/nPr=r! give proof.

1 answer:

3 0

<span>It's 1/r!

nCr = n! / r!(n-r)!
nPr = n! / (n-r)!

If you divide the two you'd have:

n! / r! (n-r)! * (n-r)! / n! = 1/r!

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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3 years ago

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3 years ago

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Hence, the minimum sample size is 1245

*Since there's no data fromw which we are drawing our variables, we can manually input our parameters in excel and calculate as attached.

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