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ICE Princess25 [194]
3 years ago
11

The variance calculated on 34 scores is equal to 14.94. what is the standard deviation?

Mathematics
1 answer:
ElenaW [278]3 years ago
4 0

Since, the variance calculated on 34 scores is equal to 14.94.

We have to determine the standard deviation.

Relationship between Variance and standard deviation is:

Standard deviation = \sqrt(Variance)

Substituting the value of Variance, to evaluate the standard deviation.

We get,

Standard deviation = \sqrt(14.94)

= 3.865

= 3.87

Therefore, the standard deviation is 3.87

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Pls help answer this, I will need an explanation as well-Thanks.
Mnenie [13.5K]
Hello!

First you have to find the probability of picking the right numbers

To do this you do the amount of favorable outcomes over the total amount of outcomes

There are 5 favorable numbers and 18 in total

This is a probability of 5/18

For the second number there of 4 favorable numbers and 17 in total since you already picked one

This is a probability of 4/ 17

For the third number there are 3 favorable numbers and 16 in total

This is a probability of 3/ 16

For the fourth number there are 2 favorable numbers and 15 in total

This is a probability of 2/ 15

For the fifth number there are 1 favorable numbers and 14 in total

This is a probability of 1/14

To get the answer you multiply all the probabilities together

5/18 * 4/17 * 3/16 * 2/15 * 1/14 = 1 / 8568

The answer is \frac{1}{8568}

Hope this helps!
7 0
3 years ago
A=2x+6xz <br> a=2x+6xz<br> for x
Dennis_Churaev [7]
So I guess we are solving for x here :)
So here is my work...
a=2x+6xz
Basically I think it would be
a=6xz+2x

WAIT WAIT NO I'M WRONG FORGIVE ME!

It's  x=a/2(1+3z)
5 0
3 years ago
Read 2 more answers
an average ant is 1/4 of an inch long. an average aphid is 3/32 of an inch long. how many times longer is the ant than the aphid
Nataly_w [17]
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3 0
3 years ago
How do you delete questions?
Phantasy [73]
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5 0
2 years ago
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Which answer choice represents an equivalent number sentence of "15 + (3 - 8)"?
frozen [14]

Answer:

A- 15-5 is the same

Step-by-step explanation:

15 + (3-8)

15 + (-5)

15-5

8 0
3 years ago
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