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Stats Semester 2 Final

Total questions: 25

Worksheet time: 36mins

Name
Class
Date
1.

Jeff has four grades from tests and IXL. They are all weighted equally. If Jeff's grades are 100, 96, 96, and 100, what Jeff's current average grade?

a)

96

b)

97

c)

98

d)

100

2.

The number of miles that Jenna cycled each week for a 7-week period is shown:

36, 42, 28, 52, 48, 36, 31

What is the median number of miles Jenna cycled?

a)

24

b)

39

c)

36

d)

52

3.

What is the MEDIAN of this set of data?

10, 90, 80, 60, 50, 40, 70, 30, 20, 100

a)

50

b)

60

c)

55

d)

45

4.

Christian has six grades from tests and IXL. They are all weighted equally. If Christian's grades are 100, 96, 96, 88, 70, and 100, what is the current average grade? (Round to the nearest whole number)

a)

90

b)

91

c)

92

d)

93

5.
What does the P stand for in nPr?
a)
Partners
b)
Positions
c)
Papers
d)
Permutations
6.
7P2
a)
0
b)
7
c)
42
d)
210
7.
What is the value of 8!
a)
40320
b)
36
c)
362880
d)
5040
8.
15C2
a)
15
b)
105
c)
455
d)
1365
9.
3P3
a)
0
b)
3
c)
6
d)
9
10.
10C4
a)
20
b)
45
c)
120
d)
210
11.
How many outfits are possible with 5 pairs of jeans, 8 t-shirts, and 2 pairs of shoes?
a)
15
b)
40
c)
80
d)
10
12.
What is the value of 5!
a)
25
b)
15
c)
120
d)
720
13.
A bag contains 30 pieces of candy. There are 15 grape, 7 cherry, 3 lemon, 5 strawberry. What is the probability of drawing a lemon?
a)
3
b)
1/10
c)
3/10
d)
30%
14.

What is the probability of selecting a cherry piece of candy?

a)

3 out of 12

b)

3 out of 3

c)

3 out of 9

d)

4 out of 10

15.
What is the probability of getting an odd number when rolling a single 6 sided die?
a)
1/6
b)
2/6
c)
3/5
d)
3/6
16.

How many total did not attend the school play?

a)

63

b)

15

c)

78

d)

221

17.

How many attended the basketball game but did not attend the school play?

a)

63

b)

55

c)

118

d)

88

18.
What percentage of SUV's are driven by women?
a)
56.25%
b)
75%
c)
83.25%
d)
86.5%
19.
What percentage of males drive sports cars?
a)
35%
b)
16.25%
c)
65%
d)
25%
20.
Mr. Thomas wanted to know if the amount of class time that he gave students to study affected their test scores.  What kind of relationship between class study time and test scores is shown on the scatter plot.
a)
No correlation
b)
Positive correlation
c)
Negative correlation
d)
Positive then negative correlation
21.
A researcher gathered data to predict the number of new types of plants (y) that will be in a state park after x years.  After making a scatter plot of the data, she determined the equation of a line of best fit to be
y = 0.25x + 8
Based on the equation, what is the number of new types of plants that will be in the park after 24 years?
a)
8
b)
14
c)
32
d)
64
22.
Make a prediction for a resting heart rate after 6 hours of exercise a week.
a)
6
b)
50
c)
55
d)
59
23.
Which graph shows a line of best fit for the scatter plot?
a)
Graph A
b)
Graph B
c)
Graph C
d)
Graph D
24.
What type of correlation does this graph have?
a)
Negative 
b)
no association
c)
positive 
25.
What type of relationship does this scatter plot show?
a)
Positive
b)
Negative
c)
No Relationship
d)
Constant

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