# math 302 statistics midterm

anyone want to answer these statistics quiz questions??  i have accounting work for trade or money…name you price…nothing to outrageous   only 25 questions here  math 302
Question 1 of 25
1.0
Points
A histogram that has a single peak and looks approximately
the same to the left and right of the peak is called:
A.symmetric
B.proportional
C.bimodal
D.balanced
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Part 2 of 9 –

Question 2 of 25
1.0
Points
Sue has 10 pictures but only has space in her apartment to
hang 4 of them on a wall. The number of different arrangements of four pictures
from a selection of ten pictures is:
A.210
B.151,200
C.24
D.5,040
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Question 3 of 25
1.0
Points
If P(A) = 0.25 and P(B) = 0.65, then P(A and B) is:
A.0.90
B.0.25
C.0.40
D.Cannot be determined from the information given
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Part 3 of 9 –

Question 4 of 25
1.0
Points
The probability distribution associated with the number of
cartoons watched by Mrs. Kelly’s first grade class on Saturday morning is shown
below.

x

P(x)
0

0.15
1

0.20
2

0.30
3

0.10
4

0.20
5

0.05

Find the
standard deviation for the probability distribution above.
A.1.46
B.2.25
C.1.89
D.1.18
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Question 5 of 25
1.0
Points
The failure rate for taking the bar exam in Philadelphia is
41%. If 375 people take the bar exam, what is the mean for the number of
failures?
A.138.1
B.171.2
C.90.7
D.153.8
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Question 6 of 25
1.0
Points
Find the variance of the following probability distribution.

X P(X)
1 0.10
2 0.35
3 0.10
4 0.15
5 0.30

A.1.44
B.2.06
C.1.76
D.1.2
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Part 4 of 9 –

Question 7 of 25
1.0
Points
If Z is a standard normal random variable, then the value z

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