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Soloha48 [4]
3 years ago
12

C)PLEASE MAN PEOPLE ARE USING ME FOR POINTS

Mathematics
2 answers:
sp2606 [1]3 years ago
8 0

Answer:

the one above is right lol

Step-by-step explanation:

UNO [17]3 years ago
3 0

The measures of spread include the range, quartiles and the interquartile range, variance and standard deviation. Let's consider each one by one.

<u>Interquartile Range: </u>

Given the Data -> First Quartile = 2, Third Quartile = 5

Interquartile Range = 5 - 2 = 3

<u>Range:</u> 8 - 1 = 7

<u>Variance: </u>

We start by determining the mean,

\:1+\:2+\:3+\:3+\:3+\:5+\:8 / 7 = 3.57

n = number of numbers in the set

Solving for the sum of squares is a long process, so I will skip over that portion and go right into solving for the variance.

\sum _{i=1}^n\frac{\left(x_i-\bar{x}\right)^2}{n-1},\\\\=> SS/n - 1\\\\=> 31.714/7 - 1\\=> 5.28571

5.3

<u>Standard Deviation</u>

We take the square root of the variance,

\sqrt{5.28571} = 2.29906

2.3

If you are not familiar with variance and standard deviation, just leave it.

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Answer:

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Step-by-step explanation:

7 0
2 years ago
Doreen schmidt is a chemist. She needs to prepare 36 ounces of a 10% shydrochloric acid solution. Find the amount of 18% solutio
emmainna [20.7K]
Total = 36oz
Amount of 18% solution = x
Amount of 9% solution = 36 - x

Using the fact that (amount of solution) * (percent HCl) = amount HCl we can set up an expression for the amount HCl in a mixture of 18% and 9% solutions with a total volume of 36oz.

Amount of HCl = x*0.18 + (36 - x)*0.09

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x = 4

Therefore,
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Check:
[(4*.18) + (.09*32)]/36 = 0.1?
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5 0
3 years ago
11y - |x|; if x = -10 and y = 2
bonufazy [111]

Answer:

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Step-by-step explanation:

x = - 10

y = 2

I x I

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7 0
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topjm [15]

Answer:

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