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soldier1979 [14.2K]
3 years ago
14

Do i calculate standard deviation for sample or population

Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
8 0

Answer:

A sample standard deviation is a statistic. This means that it is calculated from only some of the individuals in a population. Since the sample standard deviation depends upon the sample, it has greater variability. Thus the standard deviation of the sample is greater than that of the population

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How many different 4 letter arrangements can be formed from the letters in the word cards
RUDIKE [14]
Slot method
1st slot, 5 options
2nd slot, 4 options (1 gone to the first slot)
3rd slot, 3 options (1 gone again)
4th slot,2 options (1 less)

multiply
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answer is 120 arrangements
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3 years ago
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4 0
3 years ago
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The selling price of a refrigerator, is $739.20. If the mark up is 20% of the dealers cost , what is the dealers cost of the ref
Lisa [10]

Mark up percentages are used to increase the prices of items

The dealers cost of the refrigerator is $591.36

<h3>How to determine the dealer cost</h3>

Represent the dealer cost of the refrigerator with x.

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x = 739.20 * (1 - 20%)

Evaluate the product

x = 591.36

Hence, the dealers cost of the refrigerator is $591.36

Read more about mark ups at:

brainly.com/question/19104371

5 0
3 years ago
Solve for Y MUST SHOW WORK<br> 2(Y+7) = 28
Verizon [17]
2y+14=28
-14=-14
—————-
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3 0
3 years ago
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If 2x − 4(x + 1) = −12, evaluate x2 − 1.
Vlad [161]
2x-4(x+1)=-13
1) we solve this equation:
2x-4(x+1)=-12
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2) we evalute x²-1
x²-1=4²-1=16-1=15

Answer: 15
6 0
3 years ago
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