14 less than a number
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Using it's concept, the standard deviation for the given data-set is of 8.22.
<h3>What are the mean and the standard deviation of a data-set?</h3>- The mean of a data-set is given by the <u>sum of all values in the data-set, divided by the number of values</u>.
- The standard deviation of a data-set is given by the square root of the <u>sum of the differences squared between each observation and the mean, divided by the number of values</u>.
The mean for this problem is:
M = (17 + 26 + 28 + 9 + 30 + 29 + 6 + 21 + 23)/9 = 21
Hence the standard deviation is:
More can be learned about the standard deviation of a data-set at brainly.com/question/12180602
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➷ The formula for circumference is
1)
Divide both sides by
d = 9.99 (consider this to be 10)
Half this to find the radius
10/2 = 5
It would be figure B.
2)
Divide both sides by :
d = 11.99 (consider this to be 12)
Divide by 2 to find the radius:
12/2 = 6
It would be figure C.
3) area =
r^2 = 48.97515909
r = 6.998 (consider this to be 7)
It would be figure D
4)
r^2 = 35.98174
r = 5.998 (consider this to be 6)
It would be figure C.
5) radius = diameter / 2
radius = 3
It would be option C
<h3><u>✽</u></h3>➶ Hope This Helps You!
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