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oksano4ka [1.4K]
3 years ago
11

7>-4; subtract 7 from both sides

Mathematics
1 answer:
motikmotik3 years ago
5 0

Answer:

The end result would be 0>-11

Step-by-step explanation:

Subtract 7 from each number and then just write it again.

7 - 7 = 0

-4 - 7 = -11

0>-11

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Answer:

(a)\ \bar x =20.5

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Step-by-step explanation:

Given

x: 36, 14, 21, 39, 11, 2

Solving (a): The mean of the 6 samples.

This is calculated as:

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So, we have:

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Solving (b): The sample standard deviation.

This is calculated using:

\sigma = \sqrt{\frac{\sum(x - \bar x)^2}{n-1}}

So, we have:

\sigma = \sqrt{\frac{(36 - 20.5)^2 + (14 - 20.5)^2 + (21 - 20.5)^2 + (39 - 20.5)^2 + (11 - 20.5)^2 + (2 - 20.5)^2}{6-1}}

\sigma = \sqrt{\frac{1057.5}{5}}

\sigma = \sqrt{211.5}

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3 years ago
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Answer:

Step-by-step explanation:

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