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3 years ago

For the data set 6, 5, 10, 11, 13, the mean, 7, is 9. What is the standard deviation?

Mathematics

1 answer:

aleksklad [387]3 years ago

4 0

Answer:

3.39

Step-by-step explanation:

We will use SD formula to find our answer.

= Standard deviation.

= Mean.

N= Numbers of data-points.

We have been given that mean of our data set is 9. So we will find the square of each data point's distance to the mean.

Now let us substitute our given values in above formula.

Upon adding the square of distances we will get,

Upon dividing 46 by 4 we will get,

Upon taking square root of 11.5 we will get,

Therefore, the standard deviation for our given data set will be 3.39.

Read more on Brainly.com - brainly.com/question/11638718#readmore

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IceJOKER [234]

Answer:

(1,5) (7,13) (10,17) (7,13)

Step-by-step explanation:

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2 years ago

Put this least to greatest; 0.5,0.05,5/8 HELP PLEASE

Margarita [4]

0.05, 0.5, 5/8

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4 years ago

Solve each equation. Record your work and check your solution. a. 5(x-2)+(-9)= -7(1-x)

Daniel [21]

The solution for equation is x = -6

Solution:

Given equation is:

$5(x-2) + (-9) = -7(1-x)$

We have to solve the equation

According to Bodmas rule, if an expression contains brackets ((), {}, []) we have to first solve or simplify the bracket followed by of (powers and roots etc.), then division, multiplication, addition and subtraction from left to right

Therefore, solve for brackets in given equation

$5(x-2) + (-9) = -7(1-x)\\\\5x - 10 -9 = -7 + 7x$

Solve for terms in left hand side of equation

$5x - 19 = -7+7x$

Move the variables to one side and constants to other side

$7x -5x = -19+7\\\\2x = -12\\\\Divide\ both\ sides\ by\ 2\\\\x = -6$

Thus the solution for equation is x = -6

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3 years ago

How to solve 25=9-3.2h

BARSIC [14]

To solve this, you want to isolate h. Start by subtracting 9 from both sides: 16 = -3.2h. Divide by -3.2: h = -5

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3 years ago

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f(x) = (x + 5)(x - 1)

using the ' factor theorem '

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here roots are x = - 5 and x = 1 hence factors are (x + 5) and (x - 1)

the polynomial is the product of the factors

f(x) = (x + 5)(x - 1)

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4 years ago

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