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4 years ago

Harry asked a sample of 4 people how many siblings they had. Here are their responses:

Mathematics

1 answer:

earnstyle [38]4 years ago

6 0

Answer:

Formula of standard deviation = √Variance

Standard deviation = 1

Step-by-step explanation:

X-bar is the variance

Therefore, the answer would be

√X-bar

√1 = 1

You might be interested in

2n – 32 = 10(n - 8) what is the answer

sasho [114]

Answer:

n = 6

Step-by-step explanation:

2n - 32 = 10n - 80

2n - 10n = -80 + 32

-8n = -48

-48/-8 = 6

7 0

3 years ago

If m1=2x° and m3=3x° what is m1

olga_2 [115]

Answer:

Step-by-step explanation:

Using the angle addition postulate

angle 1+angle 2+angle 3=180

Angle 2 is 90 degrees,

Angle 1 is 2x degrees

Angle 3 is 3x degrees

Plug this into equation

$2x + 90 + 3x = 180$

$5x + 90 = 180$

$5x = 90$

$x = 18$

Plug 18 into 2x

$2(18) = 36$

5 0

3 years ago

I need help on this question

Serggg [28]

A = 18
You need to
Multiply both sides of the equation
- 3/2 x (-2/3) x a = - 3/2 x - 12
Then simplify both sides
a = - 3/2 x 12
Simplify
-3/2 x -12
a = -3 x -6
Multiply -3 by -6
Answer: a = 18

4 0

3 years ago

Sara has 2/3 of a leftover chocolate pie. She wants to share the leftover pie with her friends. If she gives each friend 1/6 of

salantis [7]

Answer:

well assuming there's 6 friends, which you did not state, if you divided it into 6ths then everyone will get one piece

7 0

3 years ago

Read 2 more answers

3. Write and solve an equation to

Anna71 [15]

Answer:

$x = 27$

Step-by-step explanation:

Given

The attached figure

Required

Solve for x

3x and 45 are supplementary angles

So:

$3x + 45 = 180$

$3x =- 45 + 180$

$3x =135$

Solve for x

$x = 135/5$

$x = 27$

8 0

3 years ago