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3 years ago

HELP I REALLY NEED THE HELP. In a recent election, Abe Lawton

Mathematics

1 answer:

xz_007 [3.2K]3 years ago

8 0

Answer: 5,260

Step-by-step explanation:

So the question here is 45% of WHAT number (x) = 2,367

Setup as a fraction

45/100 = 2,367/X

Cross multiply

45X=236,700

Divide 45X by 45 to get X alone

Divide the other side too bc what you do to one side, you have to do to the other.

236,700/45=

5,260

Check your answer

45/100=2367/5260

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Read 2 more answers

A sample was taken of the salaries of four employees from a large company. the following are their salaries, in thousands of dol

Free_Kalibri [48]

For given sample of salaries of four employees, the variance of their salaries is: 26 thousands of dollars

The formula for the variance is,

$S^2=\frac{\sum (x_i - \bar{x})^2}{n-1}$

where,

$S^2$ = sample variance

$x_i$ = the value of the one observation

$\bar{x}$ = the mean value of all observations

n = the number of observations

For given question,

n = 4

First we find the mean of their salaries.

(33 + 31 + 24 + 36 ) / 4 = 31

So, $\bar{x}=31$

Using the formula for variance ,

$S^2=\frac{(33-31)^2}{4-1}+\frac{(31-31)^2}{4-1}+\frac{(24-31)^2}{4-1}+\frac{(36-31)^2}{4-1}\\\\ S^2=\frac{4}{3} + \frac{0}{3} + \frac{49}{3} + \frac{25}{3} \\\\S^2= \frac{4+49+25}{3}\\\\S^2=\frac{78}{3} \\\\S^2=26$

Therefore, for given sample of salaries of four employees, the variance of their salaries is: 26 thousands of dollars

Learn more about the variance here:

brainly.com/question/13673183

#SPJ4

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What is 8,100 in scientific notation?

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