3 years ago

Complete the inequalities by

Mathematics

1 answer:

snow_lady [41]3 years ago

8 0

Answer:

-0.2 > -1.12

7.3 > -7.9

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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2 years ago

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love history [14]

Answer:

The answer is 6/24

Step-by-step explanation:

1/3 was multiplied by 3 so should the other one too.

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3 years ago

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White raven [17]

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3 years ago

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2 years ago

Help me find Sample variance and standard deviation

AnnZ [28]

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

$\bar x=\displaystyle\frac15\sum_{i=1}^5x_i=\dfrac{21+10+6+7+11}5=11$

The variance of the sample is then computed with the formula

$s^2=\displaystyle\dfrac1{5-1}\sum_{i=1}^5(\bar x-x_i)^2=\dfrac{(21-11)^2+\cdots+(11-11)^2}4=\dfrac{71}2=35.5$

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

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

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3 years ago