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igor_vitrenko [27]
3 years ago
11

Please help............ what is the formula of calculating variance??

Mathematics
1 answer:
natta225 [31]3 years ago
6 0

Answer and Step-by-step explanation:

Hello!

To calculate variance, we start by calculating the mean, or average of your question. Then, we subtract the mean from each data point, and square the differences. Next, we add up all the squared differences. Now, the last step is to divide The sum by n minus 1, where n equals the total number of data points from your question!

Hope this helps you!

Hugs,

Josh

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if the length of a rectangle is increased by 30% and the width of the same rectangle is decreased by 30% what is the effect on t
faltersainse [42]

Answer:60

Step-by-step explanation:30%+30%=60% since it is a rectangle i thing this is the answer

6 0
3 years ago
The sum of two numbers is -25. One number is 101 less than the other. Find the numbers
zlopas [31]

Answer:

-63, 38

Step-by-step explanation:

1st number = x

2nd number = x+101

x+x+101=-25

2x=-126

x=-63

1st number = x = -63

2nd number = x+101 = 38

6 0
3 years ago
Read 2 more answers
10. The perimeter of a triangle is 48'. The sides are in the ratio of 1 to 2 to 3. Find the three sides.​
pentagon [3]

Answer:

Step-by-step explanation:

The sides are in the ratio 1:2:3, so the lengths of the sides are 1x, 2x, 3x.

1x + 2x + 3x  = 48'

6x = 48'

x = 8'

The lengths of the sides are 8', 16', 24'

4 0
2 years ago
Need help ASAP
madreJ [45]

Answer:

A 1/4

Step-by-step explanation:

2/3 x = 1/6

2x/3 = 1/6

2x/3 = 1/2x3

The answer  is 1/4

8 0
2 years ago
Read 2 more answers
Find the GCF<br> 1. 12,21,30<br> 2. 11,44
Dafna1 [17]
The GCF of 12, 21, and 30 is 3.
The factors of 12 are: 1, 2, 3, 4, 6, 12
<span>The factors of 21 are: 1, </span>3, 7, 21
<span>The factors of 30 are: 1, 2, </span>3, 5, 6, 10, 15, 30
<span>Then the greatest common factor is 3.
</span>
The GCF of 11, and 44 is 11. 
The factors of 11 are: 1, 11
The factors of 44 are: 1, 2, 4, 11, 44
Then the greatest common factor is 11. 

Hope this helps.
8 0
2 years ago
Read 2 more answers
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