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noname [10]
3 years ago
7

Can somebody help me with this problem

Mathematics
1 answer:
maw [93]3 years ago
7 0
Can c it if i could i would help u tho
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How to calculate standard deviation given mean and sample size?
ad-work [718]
In addition to mean and sample size you will need the individual scores.

The formula for standard deviation is:

S^2 = E(X-M)^2/N-1

Here's an example: 
Data set: 4,4,3,1
Mean: 3
Sample size: 4

First, put the individual scores one after the other and subtract the mean from it.
4 - 3 = 1
4 - 3 = 1
3 - 3 = 0
1 - 3 = -2

Second, square the answers you got from step 1. 
1^2 = 1
1^2 = 1
0^2 = 0
-2^2 = 4
Third, plug the values from step 2 into the formula. 

S^2 = (1+1+0+4)/(4-1) = 6/3 = 2

Standard deviation = 2
3 0
3 years ago
The Percent of increase
ANEK [815]
Percent of Increase = Increase / Original    * 100%

Increase = $33 - $30 = $3
Original Price = $30

Percent Increase = $3 / $30  * 100%  ====  10%
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3 years ago
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Kwame says that the ordered pair(5,0) is on the y-axis. So you agree? Justify your answer.
RideAnS [48]

Answer:

No, the answer would be on the x-axis. This is because x=5 and y=0, which would mean that the ordered pair (5,0) would be on the x-axis.

Hope this helps!

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margin has four books to read for homework this week. if he reads 2/3 of a book each night . how many nights will it take him to
s2008m [1.1K]
It will take him 5 days to complete
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3 years ago
‼️‼️help please ASAP‼️‼️
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D is the answerrrrrrr
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