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wolverine [178]
3 years ago
7

Find standard deviation 22,25 30 35 40 45 48​

Mathematics
1 answer:
poizon [28]3 years ago
8 0

Answer:

To calculate the standard deviation of those numbers:

Work out the Mean (the simple average of the numbers)

Then for each number: subtract the Mean and square the result.

Then work out the mean of those squared differences.

Take the square root of that and we are done!

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When you express the equation of a line in the form y=mx+q, the coefficient m is exactly the slope of the line.

So, let's manipulate the equation to fulfill our goal:

12 = 4x-6y \iff 6y = 4x-12 \iff y = \dfrac{4}{6}x - 2 \iff y = \dfrac{2}{3}x-2

So, the slope is 2/3

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3 years ago
-1+8v=2+8v what is the value of v?
Nesterboy [21]

Answer: There are no solutions.

Step-by-step explanation:

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PLEASE HELP ME FAST I NEED HELP PLEASE
Firdavs [7]

Answer:

The first one

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2 years ago
What is the volume of the cylinder below radius 7 height 4
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V = pi * r^2 *h

where r is the radius and h is the height of the cylinder

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6 0
3 years ago
Read 2 more answers
During an experiment, some water was removed from each of the 6 water tanks. If the standard deviation of the volumes of water i
Julli [10]

Answer:

First statement is correct.

Step-by-step explanation:

If we add or subtract a constant to each term in a set:  Mean will increase or decrease by the same constant.  Standard Deviation will not change.

If we increase or decrease each term in a set by the same percent (multiply all terms by the constant):  Mean will increase or decrease by the same percent.  Standard Deviation will increase or decrease by the same percent.

For example:

Standard Deviation of a set: {1,1,4} will be the same as that of {5,5,8} as second set is obtained by adding 4 to each term of the first set.

That's because Standard Deviation shows how much variation there is from the mean. And when adding or subtracting a constant to each term we are shifting the mean of the set by this constant (mean will increase or decrease by the same constant) but the variation from the mean remains the same as all terms are also shifted by the same constant.

So according to this rule, statement (1) is sufficient to get new Standard Deviation, it'll be 30% less than the old.. As for statement (2) it's clearly insufficient as knowing mean gives us no help in getting new Standard Deviation.

6 0
3 years ago
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