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2 years ago

Find each percent is 10 of 75 what is 1 percent of 75

Mathematics

1 answer:

Aloiza [94]2 years ago

6 0

Answer: 7.5

Step-by-step explanation: i hope this helps have a nice day god bless

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for the following data set calculate the percentage of data points that fall within one standard deviation of the mean, and comp

gayaneshka [121]

Answer:

First we need to find the mean and standard deviation of the given data.

The mean and standard deviation are given below:

$Mean=\frac{50+46+54+51+29+52+48+54+47+48}{10}=\frac{479}{10}=47.9$

$Standard-deviation=\sqrt{\frac{\sum(x-\bar{x})^2}{n-1} }$

$=\sqrt{\frac{(50-47.9)^2+(46-47.9)^2+(54-47.9)^2+...+(48-47.9)^2}{10-1} }$

$=7.20$

We have:

$\bar{x} \pm s=(47.9 \pm 7.20)$

$=(47.9-7.20, 47.9+7.20)$

$=(40.7, 55.1)$

Therefore, the percentage of values that lies within one standard deviation of the mean is:

$\frac{9}{10} \times 100 =90\%$

The expected percentage of values within one standard deviation of the mean according to normal distribution is 68%.

Therefore, the observed percentage of values within one standard deviation of the mean is much higher than the expected percentage of a normal distribution.

3 0

3 years ago

Simon buys a laundry basket price at $14 if the sales tax is 10% how much tax will Simon Pay

yanalaym [24]

$1.4 is the answer...

4 0

3 years ago

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The shape has two right angles, an obtuse angle, and an acute angle. One pair of opposite sides is parallel. Select the correct

IRISSAK [1]

Answer:

Trapezoid

Step-by-step

5 0

2 years ago

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Use the given figure to complete the statement below.<br> m∠COB and m∠ __ are equal. please help me

Brut [27]

Answer:

BOA

Step-by-step explanation:

angle COB = 80 - 60 = 20

angle BOA = 60 - 40 = 20

6 0

3 years ago

Kia stuffs 228 envelopes in an hour. What is the average number of envelopes Kia stuffs per minute?

stich3 [128]

Well, you already know how much she stuff per hour, but you still need to find out how much per minute. And in one hour, there are 60 minutes.

So you divide the amount in an hour by 60 minutes, meaning you divide : 228 ÷ 60 = ?

And once divided, you get 3.8. So that would mean that she stuffs 3.8 envelopes per one minute, so that means nearly 4, but since you aren't asked to round, I'd say to just go for the average rate, which is 3.8

5 0

2 years ago

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