find the value of m and n

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Consider the numbers 5m+4n,m+58,2n+43,46 and 40.If the mean is 53 and the varience is 76, find the value of m and n

Guest Mar 1, 2015

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Best Answer

+118723

+5

Which formula are you expected to use for variance? There are 2.

You do know that

(5m+4n + m+58 + 2n+43 + 46 + 40)/5 = 53

5m+4n + m+58 + 2n+43 + 46 + 40 = 265

6m+6n + 187 = 265

Now you need the formual for variance.

Melody Mar 1, 2015

1⁺⁰ Answers

+118723

+5

Best Answer

Which formula are you expected to use for variance? There are 2.

You do know that

(5m+4n + m+58 + 2n+43 + 46 + 40)/5 = 53

5m+4n + m+58 + 2n+43 + 46 + 40 = 265

6m+6n + 187 = 265

Now you need the formual for variance.

Melody Mar 1, 2015

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