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Kisachek [45]
3 years ago
14

Which value from the set (54,45,27,6) makes 54/x = 9 true?

Mathematics
1 answer:
OLga [1]3 years ago
3 0

Answer:

x = 6

Step-by-step explanation:

54/6 is 9. This is the only correct one.

Hope it helps!

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2) Standard deviation
The standard deviation is given by:
\sigma =  \sqrt{ \frac{1}{N} \sum (x_i-\mu)^2 }
where \mu is the mean, that we already found at point 1), and N=4. Substituting data, we have:
\sigma =  \sqrt{ \frac{1}{4} ((-0.56)^2+(18.52)^2+(-13.99)^2+(-3.96)^2) } =
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3 years ago
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