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sveticcg [70]
3 years ago
7

Ms. Johnson uses a statistics program to analyze all the data collected by her students during a lab experiment about the accele

ration due to gravity. The program reports a mean of 31.5 and a standard deviation of 2.5. What is the variance of the data? Round to the nearest tenth. A. 2.5 B. 5.6 C. 1.6 D. 6.3
Mathematics
2 answers:
vovikov84 [41]3 years ago
5 0

Answer:

The answer is D) 6.3

lesya692 [45]3 years ago
4 0
The variance (σ^2) is the square of the differences between the mean and each data.
 The problem says that the program reports a mean of 31.5 and a standard deviation of 2.5, so you have to elevate the standar deviation to the power 2:

 σ^2 = (2.5)^2 
 σ^2 = 6.30       
<span>
 What is the variance of the data?
</span> The variance of the data is 6.30, so the the correct option is D.







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Ede4ka [16]

Answer:

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Step-by-step explanation:

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2 years ago
Which equation represents h(x)?
GarryVolchara [31]

Answer:

Step-by-step explanation:

You might find this easier if you change h(x) to y. It might look more familiar.

you are given 1 point and that is (-1,1). What that means is when x = -1,

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You have written this as though y is linear. It is not. The power is 1/3, not 1.

Let us try B which is what I think the answer is.

y = (x + 2)^(1/3)

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So the answer is

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3 years ago
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Travka [436]

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3 0
3 years ago
Colin invests £100 into his bank account.
kramer

The answer is $131.59

After year 1

104

Year 2

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Year 3

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Year 4

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Year 5

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Year 6

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Year 7

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8 0
3 years ago
Read 2 more answers
Are theses 3 answers right?
sweet [91]
Yes they are correct.

At least I'm pretty sure they are:)
6 0
3 years ago
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