3 years ago

How do you find standard deviation?

1 answer:

3 0

You first work out the mean then for each number subtract the mean and square the result then work out the mean of those squared differences and take the square rot of that and you're done :)

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(Please help a sister out)!

MrRissso [65]

Answer:

Distributive

Step-by-step explanation:

when you distribute 3 to x, 3y, and 5, you get 3x+9y+15, which is equivalent to the other expression when you simplify it

5 0

3 years ago

Solve for the area (A) of a rectangle if the length (l) is 4x and the width (W) is 5x*. Remember Area = length x width

Harrizon [31]

Answer:

If area = length * width that means the answer is 4x * 5x = 20x².

8 0

3 years ago

HELP PLEASE ASAP I WILL MARK BRAINLIEST

prisoha [69]

Answer:

BC = 24

Step-by-step explanation:

FD = 36, FE = 15 and CD = 18

By secant theorem.

DE • DF = CD • DB

(36 - 15) • 36 = 18 • DB

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PLEASE MARK ME AS BRAINLIEST AND HAVE A NICE DAY :)

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1 year ago

thomas has 6.35 in dimes and quarters the number of dimes is three more than three times the number of quarters how many quarts

Feliz [49]

Answer:

11 quarters

Step-by-step explanation:

If Thomas ignores the extra 3 dimes, he can arrange his coins in groups of 3 dimes and 1 quarter, each group valued at 55¢. It takes

... 6.05/0.55 = 11

groups to bring the total value to the $6.05 remaining after ignoring the extra dimes.

Thomas has 11 quarters and 36 dimes.

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3 years ago

In a math class there are 8 male students and 7 female students. A

DanielleElmas [232]

Answer:

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers