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2 years ago

Can anybody help me with this please I’ll mark you as a brainliest.

Mathematics

1 answer:

gogolik [260]2 years ago

8 0

Answer:

its 3.

Step-by-step explanation:

plz mark brainliest :) :))))))))))))

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For 6 consecutive days, Alejandro studied for 5 minutes more each day than he did the previous day. Which best represents the ch

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It took 2 electricians 5 days to wire a house. How long would it take 10 electricians?

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2 took 5 10 take 1

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A sample of blood pressure measurements is taken for a group of adults, and those values (mm Hg) are listed below. The values

nika2105 [10]

Answer:

For systolic pressure data:

$\bar X =127.2\\\\S=17.91668\\\\CV=\frac{17.91668}{127.2}=0.14085$

For diastolic pressure data:

$\bar X =73.5\\\\S=12.54\\\\CV=\frac{73.5}{12.54}=0.17061$

Systolic pressure is slightly less variable, among individuals in the sample, than diastolic pressure.

Step-by-step explanation:

The coefficient of variation is defined as the percentage relative variation of a set of data with respect to its average. And it is calculated like this:

$CV=\frac{\bar X}{S}$

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

$\bar X={\frac{1}{n} \sum_{i=1}^n x_i$

For systolic pressure data:

$\bar X =127.2\\\\S=17.91668\\\\CV=\frac{17.91668}{127.2}=0.14085$

For diastolic pressure data:

$\bar X =73.5\\\\S=12.54\\\\CV=\frac{12.54}{73.5}=0.17061$

It is observed that the systolic pressure shows greater standard deviation but less coefficient of variation. This is due to the greater magnitude of its measurement scale.

Systolic pressure is slightly less variable, among individuals in the sample, than diastolic pressure.

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2 years ago

How much 3 1/4+9 3/8

antoniya [11.8K]

Answer:12 5/8

Step-by-step explanation:

Add the whole numbers together. 3 + 9 = 12

Multiply 1/4 so that it will have the same dnominator as 3/8. 2(1/4)= 2/8

Add the fractions together. 2/8 + 3/8 = 5/8.

Add the whole number and fraction to get a mixed number. 12 + 5/8 = 12 5/8

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3 years ago

Find the equation of the line that passes through the point (3,7) and is parallel to the line that passes through (5,5) and (5,3

Vinil7 [7]

Answer:

this is correct answer

Step-by-step explanation:

you supports to write this

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2 years ago