Question

The mean happiness score on the measure of happiness was 25 and the standard deviation was zero. This shows that

Answer #1

The mean happiness score on the measure of happiness was 25 and the standard deviation was zero. This shows that

all sample people having same, identical happiness score i.e 25.

example : suppose three score 24,25,26

mean = 25 but standard deviation is 1.

Take another three score 25,25,25

mean = 25 but standard deviation is zero.

Conclusion: The mean happiness score on the measure of happiness was 25 and the standard deviation was zero. This shows that all happiness score are equal i.e. 25

The standard deviation on the rate of return on an
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In a distribution the mean is 55 and the standard deviation is
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For her test grades, Gena has a mean = 65 and standard deviation
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Part 1 -
Compute z Scores
Mean
=
25
Standard
Deviation =
5.2
X
z
Score
Question 1
25
Question 2
16
Question 3
18
Question 4
27
Question 5
31
Question 6
25
Question 7
20
Question 8
35
Question 9
32
Question 10
10
Part 2 - Compute Probability
z
Score
Probability
Question 11
-1.5
Question 12
1.5
Question 13
1.9
Question 14
-1.9
Question 15
-1.1
Question 16
1.0
Question 17
0.6
Question 18
2.1
Question 19...

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not?

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deviation of these scores is 39 . A special preparation course
claims that its graduates will score higher, on average, than the
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significance, can we conclude that the preparation course does what...

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Enter E if the student did better on the Economics test
Enter A if the student did better on the Accounting test
Enter S if the...

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