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Serjik [45]
3 years ago
9

Calculate population variance from population standard deviation

Mathematics
1 answer:
Tema [17]3 years ago
8 0
The standard deviatiion is the square root of the variance.
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Male and female high school students reported how many hours they worked each week in summer jobs. The data is represented in th
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d

Step-by-step explanation:

the last one of the four

4 0
3 years ago
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Find the location of the center of a circle if the endpoints of the diameter are at (-10,
Artyom0805 [142]

Answer:

(- 1, - \frac{1}{2} )

Step-by-step explanation:

The centre is located at the midpoint of the diameter.

Using the midpoint formula , then

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7 0
3 years ago
PLEASE HELP ASAP I have no idea how to solve this pls pls pls
xz_007 [3.2K]

Answer:

Step-by-step explanation:

you have to use trigonometric functions

cos 30 = adj. /hyp.

cos 30 = 12 / y

y = 12/cos 30 ≅13.86

tan 30 = opp./adj

tan30 = x / 12

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5 0
3 years ago
What is the value of z in the equation 2(4z − 3 − 21) = 166 − 46? 21 24 30 36
Nataly_w [17]
2(4z-3-21)=166-46

Combine like terms
2(4z-24)= 120

Distribute
8z-48= 120

Add 48 to both sides
8z= 168

Divide both sides by 8
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Final answer: z=21
5 0
3 years ago
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The answer?????????????
Aleksandr-060686 [28]

Hey there!

In a rhombus, opposite angles are congruent. This means that 2y is equal to y+34. Let's set up an equation to solve for y.

2y=y+34

We subtract y from both sides.

y=34

Therefore, y=34°

I hope that this helps! Have a wonderful day!

6 0
3 years ago
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