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gavmur [86]
3 years ago
7

What is the variance of the data set? 8, 9, 10, 16, 17

Mathematics
1 answer:
adoni [48]3 years ago
6 0
Mean = (8 + 9 + 10 + 16 + 17) / 5 = 60/5 = 12.

x - mean:

8 - 12 = -4,  -4² = 16

<span>9 - 12 = -3,  -3² = 9
</span>
<span>10 - 12 = -2,  -2² = 4
</span>
<span>16- 12 = 4,  4² = 16</span>

<span>17- 12 = -5,  -5² = 25
</span>
Sum of the squares =   16 + 9 + 4 + 16 +25 = 70

Variance = 70/5 = 14

Variance = 14
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Please help! I am confused
Levart [38]
I would say the 60 + 20 represents how the shirts cost the same amount. Then I would say the x either represents the cost before tax or how to find the cost of the shirts.


I hope this helps!
Good Luck!
3 0
3 years ago
Read 2 more answers
How would I find the range pls give all steps
Volgvan
The range is the difference between the smallest and highest numbers in a list or set. To find the range, first put all the numbers in order. Then subtract (take away) the lowest number from the highest. The answer gives you the range of the list.
6 0
3 years ago
Please show me how you got this answer <img src="https://tex.z-dn.net/?f=%5Csqrt%7B18a%5E2%7D%2A4%5Csqrt%7B3a%5E2%7D" id="TexFor
Kryger [21]

Answer:

Step-by-step explanation:

Comment

18 factors into 2 * 3 * 3

Both factors have an a^2 under the root sign. The rule for that is take 1 a outside the root sign and throw the other one away.

The same rule applies to the two 3s that factor 18.

What you get is

3a√2 * 4*a*√3

Answer 12a^2 √2 * √3

Answer: 12a^2 * √6

5 0
2 years ago
What is the slope of the line shown in the graph? (See picture)
iogann1982 [59]

Answer:

Remember rise over run for the slope.

the slope is always the number on the left side (x) and the y intercept is the number in the right (y)

(x,y).

6 0
3 years ago
Point t is the MIDPOINT of point SV. find the location of V!
Arada [10]

Answer:

-1.5

Step-by-step explanation:

The distance between S and T is

4 - -7

4+7 = 11

Divide this in half to find the midpoint

11/2 = 5.5

Add this to point S to get the point itself

-7 + 5.5 = -1.5

3 0
4 years ago
Read 2 more answers
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