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Damm [24]
4 years ago
6

What is the standard deviation of the data set?

Mathematics
1 answer:
Temka [501]4 years ago
5 0
The Standard Deviation is a measure of how spread out numbers are. Standard deviation can be calculated by the expression as follows:

s = √∑(x - x(mean))^2/n-1

x(mean) = 24

s = √∑(x - 24)^2 / 7-1
<span>s = 6.11

Hope this answers the question. Have a nice day.</span>
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A toy manufacturer wants to know how many new toys children buy each year. Assume a previous study found the variance to be 1.44
zhuklara [117]

Answer:

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4 0
4 years ago
What are partial quotients of 145/5
djyliett [7]
Partial Quotient is the process of division that engage remainders on the first part of division.
The given situation:
 partial quotients to divide 145 by 5.
Let’s start solving,
=> 145 / 5
How many 5 are there in 145
=> 14 / 5 = 2, (2 x 5 = 10)
Bring down 4, then bring down 5
=> 45 / 5 = 9
Thus the answer is 29, there are 29 5s in 145.
5 0
4 years ago
Read 2 more answers
Dustin bought 9 pencils. Some of the pencils were green and cost $0.90 each. The remainder of the pencils were purple and cost $
Talja [164]

Answer: he bought 5 green pencils

Step-by-step explanation:

Let x represent the number of green pencils that Dustin bought.

Dustin bought 9 pencils. The remainder of the pencils were purple. This means that the number of purple pencils that he bought is 9 - x

Some of the pencils were green and cost $0.90 each. The remainder of the pencils were purple and cost $0.65 each. If Dustin paid $7.10 for all of the pencils, it means that

0.9x + 0.65(9 - x) = 7.1

0.9x + 5.85 - 0.65x = 7.1

0.9x - 0.65x = 7.1 - 5.85

0.25x = 1.25

x = 1.25/0.25

x = 5

8 0
4 years ago
Add.<br><br> −4+(−19)<br><br> Enter your answer in the box.<br><br> help please!
77julia77 [94]

Answer:

-4+(-19)

open the bracket

 (+)×(-) = -

-4-19= -23

7 0
2 years ago
Read 2 more answers
Which linear function represents the line given by the point-slope equation y +7=-2/3(x + 6)
siniylev [52]

Answer:

y = -(2/3)*x - 11

Step-by-step explanation:

To convert a point-slop equation into a linear function, there are certain steps which have to be followed. The primary aim is to make y the subject of the equation. By making sure that y is on the left hand side of the equation and x is on the right hand side of the equation, our goal will be achieved. To do that, first of all do the cross multiplication. This will result in:

3(y+7) = -2(x+6).

Further simplification results in:

3y + 21 = -2x - 12.

Keeping the expression of y on the left hand side and moving the constant on the right hand side gives:

3y = -2x - 33.

Leaving y alone on the left hand side gives:

y = -(2/3)*x - 33/3.

Therefore, y = -(2/3)*x - 11!!!

5 0
4 years ago
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