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posledela
2 years ago
10

Please help!!!!!!!!!!!!

Mathematics
1 answer:
frosja888 [35]2 years ago
6 0

Answer:

<h2>all 3</h2>

Step-by-step explanation:

The equilateral triangle is a triangle in which all three sides are equal.

Therefore your answer is all 3.

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The variance can never bea.zerob.larger than the standard deviationc.negatived.smaller than the standard deviation
MrRa [10]

Answer:

c.negative

True, by definition since the variance take in count the differences around the mean squared, then we can't have a negative value for a sum of square values.

Step-by-step explanation:

We need to remember that the variance is a measure of dispersion for a dataset respect to a measure of central tendency called the mean. The mean is defined as:

\bar x = \frac{\sum_{i=1}^n X_i}{n}

And the population mean is given by:

\mu= \frac{\sum_{i=1}^n X_i}{N}

The population variance is defined by:

\sigma^2 = \frac{\sum_{i=1}^n (X_i -\mu)^2}{N}

And the sample variance is defined as:

s^2= \frac{\sum_{i=1}^n (X_i -\bar x)}{n-1}

Now if we analyze the options we have this:

a.zero

False, if all the values are the same then the mean would be the same to the values and the difference between each value and the mean would 0 and indeed the variance would be 0.

b.larger than the standard deviation

False, if the population standard deviation is \sigma=2 then the variance would be \sigma^2 = 4 and as we can see is higher than the standard deviation

c.negative

True, by definition since the variance take in count the differences around the mean squared, then we can't have a negative value for a sum of square values.

d.smaller than the standard deviation

False, if the population standard deviation is \sigma=0.1 then the variance would be \sigma^2 = 0.01 and as we can see is lower than the standard deviation

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Jamal and Samuel are saving for a camping trip. Jamal starts with $18 and saves $5 each week.
bija089 [108]

Answer:

Step-by-step explanation:

how many weeks are they doing this for?

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Need this question ASAP!!! Grayson bought a rectangular waste basket that is 1 1/2 feet long, 3/4 foot wide, and 2 feet high . F
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Answer:

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Step-by-step explanation:

1.5*3/4*2=9/4

4 0
2 years ago
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