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2 years ago

What's the answer to number 25?

Mathematics

2 answers:

tatyana61 [14]2 years ago

5 0

Find the difference

5/6-3/4 (you have to get the same denominators by multiply the individual fractions)

(5/6)*2 and (3/4)*3 to get a denominator of 12

10/12-9/12 (subtract numerators, leave denominator)
=1/12 which is the answer

Hope this helps<span />

mixer [17]2 years ago

5 0

5/6-3/4 =(20-18)/24 = 2/24
..

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Recall that if $X\sim\mathcal N(\mu,\sigma)$ , then the sampling distribution $\overline X=\displaystyle\sum_{i=1}^n\frac{X_i}n\sim\mathcal N\left(\mu,\dfrac\sigma{\sqrt n}\right)$ with $n$ being the size of the sample.

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