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bixtya [17]
3 years ago
7

How to solve I can’t do it

Mathematics
1 answer:
MariettaO [177]3 years ago
5 0

Answer:

10.94

Step-by-step explanation:

The standard deviation is calculated by using the following formula:

s=\sqrt{\frac{1}{N-1}sum(xi -x)^2}

This means that N is the total number of cases you want to take into account, times the sum of x at the ith position - x squared.

In other words, the standard deviation in your example implies the following:

26 is the first value, so i = 1, 34 is the second value, so i = 2, 18 where i = 3, and so on and so forth, until you reach the end, which is 6 (so the initial value is 1 and the last one is 6).

You're doing a sum over an iteration of all the numbers in your sample.

So applying the sum of all of the numbers, it gives us the following:

(26-28)^2+(34 - 28)^2+(18 - 28)^2 ... (41 - 28)^2

= \frac{598}{5} \\=119.6\\

The sum of all of the numbers in your sample is equal to 119.6.

Substitute into the equation once again:

s=\sqrt{119.6}

Where the square root of 119.6 is 10.93617...

Rounded to two decimal places: 10.94

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Answer:

Option A.

Step-by-step explanation:

Graph of function has been given in the figure.

Coordinates of the points lying on this graph will be

x     -2        -1         0          1        2

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3 years ago
What is the domain of f/g, given f(x)=x+2 and g(x)=x-7?
kodGreya [7K]

Answer:

(-∞,7) U (7,∞)

Step-by-step explanation:

f(x)= x+2

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Here we have x-7 in the denominator

To find domain we set the denominator =0  and solve for x

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Step-by-step explanation:

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