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2 years ago

I NEED HELP ASAP!!!!!!

Mathematics

1 answer:

eduard2 years ago

7 0

Answer:

I give bases example the triangle pyramid

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Solve the following equation for d.<br><br> m+1/6rd = 7

Amanda [17]

Answer: d = 42/r - 6m/r

Step-by-step explanation: Isolate the variable by dividing each side by factors that don't contain the variable.

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3 years ago

PLEASE HELP ME ANSWER BESTIES !!!

Crazy boy [7]

Your not my bestieeee but the answer from me is unkown i jus want to be able to answer one question :)

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3 years ago

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Which property can be used to expand the expression -27x+7)

Komok [63]

Answer: I think distributive

Step-by-step explanation:

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3 years ago

Whole numbers greater than 9 but less than 14

yaroslaw [1]

10, 11, 12, and 13 :)

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3 years ago

Height, in meters, is measured for each person in a sample. After the data are collected, all the height measurements

charle [14.2K]

Answer:

(E) The z-scores of the height measurements

Step-by-step explanation:

Mean is given by

$\bar {x}=\frac{1}{n}\left(\sum _{i=1}^{n}{x_{i}}\right)=\frac{x_{1}+x_{2}+\cdots +x_{n}}{n}$

Where,

n = Number of people

$x_{i}$ = The heights of people

When converting m to cm the mean would be

$\bar {x}=\frac{1}{n}\left(\sum _{i=1}^{n}{x_{i}}\right)\times 100$

So, the mean would change

The median gives us the middle data value when the data values are in ascending order.

So, the median would change

Standard deviation

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

When converting to centimeters

$s=\sqrt{\frac{1}{N-1}\sum_{i=1}^{N}\left((x_i-\bar{x})\times 100\right)^2$

Hence, the standard deviation would change

When converting to centimeters the maximum height in meters would be the maximum height in centimeters also.

The z score is given by

$z=\frac{x-\mu}{\sigma}$

where,

x = Data point

$\mu$ = Mean

$\sigma$ = Standard deviation

When converting to centimeters

$z=\frac{(x-\mu)\times 100}{\sigma\times 100}\\\Rightarrow z=\frac{x-\mu}{\sigma}$

Hence, the z score would remain the same

5 0

3 years ago