Equivalent fraction of 7/21

Mathematics

2 answers:

AVprozaik [17]2 years ago

7 0

Answer:

1/3

Step-by-step explanation:

Radda [10]2 years ago

3 0

Answer:

1/3

Step-by-step explanation:

7 x 3 = 21

21 / 3 = 7

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Help me find Sample variance and standard deviation

AnnZ [28]

First, find the mean. You'll need it to compute the variance.

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The standard deviation is the square root of the variance, so

$s=\sqrt{35.5}\approx5.958$

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