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Chapter 31-33

Total questions: 90

Worksheet time: 3hrs 8mins

Name
Class
Date
1.
What is the mean?
a)
# happening the most
b)
the number in the middle
c)
biggest-smallest
d)
the average
2.
A data set can have more than one mode
a)
True
b)
False
3.

Find the mean of this data set:

2, 57, 38, 42, 6

a)

29

b)

38

c)

50

d)

145

4.

Find the median of this data set:

4, 2, 7, 4, 3

a)

2

b)

5

c)

7

d)

4

5.

Find the mode of this data set:

67, 74, 95, 98, 98, 99, 102

a)

90.4

b)

35

c)

92

d)

98

6.
How many scores are listed in this Stem and Leaf Plot?
a)
3
b)
6
c)
9
d)
18
7.

A florist records the amount of money he spent on gasoline each week to deliver orders. The list shows the data for 16 weeks.

32, 38, 40, 44, 46, 47, 49, 53, 55, 58, 62, 65, 68, 70, 72, 81

He put the data in a stem-and-leaf plot. What number did he leave out of the stem-and-leaf plot?

a)

32

b)

47

c)

65

d)

84

8.
What is the mode of the scores?
a)
24
b)
14
c)
34
d)
30
9.

What is the median of the scores?

a)

21

b)

16

c)

17

d)

19

10.

The temperature in Michigan City on this date in the last ten years were: 68, 68, 69, 70, 72, 70, 68, 75, 55, 67. What is the mean temperature on this date over the last ten years? (Round to nearest whole number.)

a)

60

b)

61

c)

68

d)

69

11.

What is the median?

a)

The number in the middle when the numbers are in order from least to greatest.

b)

The difference between the largest and smallest number.

c)

The average

d)

The number that appears most often.

12.

What is the range?

a)

The sum of the largest and smallest number

b)

The number in the middle

c)

The difference between the largest and smallest number

d)

The number that appears most often

13.
What is the mode?
a)
The average
b)
The number that appears most often.
c)
The largest number - the smallest number
d)
The number in the middle.
14.
To find the average of a set of numbers, add up all the items and divide by...
a)
2.
b)
The smallest number
c)
The largest number
d)
The number of items in the set.
15.
At Donald's Donuts the number of donut holes in a bag can vary. Help Donald find the mode.
12,10,10,10,13,12,11,13,10
a)
13
b)
12
c)
11
d)
10
16.
93, 100, 82, 93, 67, 100, 67, 82, 93, 93
What is the mode of this data set?
a)
26
b)
93
c)
33
d)
82
17.

3, 3, 4, 6, 9 - What is the mode?

a)

3

b)

4

c)

6

d)

9

18.

Find the average of these numbers.

10, 3, 2, 5

a)

5

b)

4

c)

10

d)

3

19.

What is the average of these numbers?


2, 6, 4, 8, 5

a)

8

b)

2

c)

5

d)

7

20.

Dr. Dre is a dentist. He needs to report on the average (Mean) number of cavities that his patients have.

1, 0, 1, 5, 0, 3, 4. What is the average number of cavities?

a)

14

b)

2

c)

7

d)

1

21.

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

22.
What is the mean of these numbers?
4,5,5,2,3,3,2,8
a)
40
b)
24
c)
4
d)
256
23.
Find the mean:
28, 18, 19, 18, 17
a)
20
b)
18
c)
11
d)
19
24.
What is the mean for these numbers?
5,5,5,5
a)
5
b)
20
c)
15
d)
100
25.

Calculate the mean.

2, 9, 10, 6, 8

a)

8

b)

4

c)

7

d)

22

26.
Find the median:
3, 5, 7, 4, 3, 1
a)
3 and 4
b)
There isn't one
c)
3.5
d)
3
27.
On the semester final, Joe scored 85, Jill scored 89, and Bill scored a 99.What was the average score for these students? _________
a)
91
b)
273
28.
The number of miles that Kiki cycled each week for a 7-week period is shown: 
36, 42, 28, 52, 48, 36, 31 
What is the median number of miles Kiki cycled?
a)
24
b)
36
c)
39
d)
52
29.
The cost of four cell phones are $345, $400, $110, and $640.
What is the median cost
a)
$330
b)
$390
c)
$372.50
d)
$375
30.

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

31.

Look at these numbers - 11, 11, 7, 18, 8. What is the correct way to put them in order so you can find the median?

a)

18, 11, 11, 8, 7

b)

11, 7, 8, 18, 11

c)

8, 7, 11, 11, 18

d)

7, 8, 11, 11, 18

32.
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%
33.
A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?
a)
3/10
b)
3/9
c)
1/9
d)
1/3
34.

What is the probability of flipping a coin

3 times and getting 3 heads?

a)

1/8

b)

1/4

c)

1/2

d)

3/4

35.

The theoretical probability of rolling an even number on a dice.

a)

3/6

b)

1/2

c)

1/6

d)

5/6

36.

A farm has 5 brown cows and 10 white cows. A fence is open and two cows escape. What is the probability that it will be a brown cow, then a white cow?

a)

1/9

b)

2/9

c)

5/21

d)

10/21

37.

You pick a marble from this bag.

What is the probability you will choose either a black or white marble?

a)

3/5

b)

9/100

c)

1/10

d)

2/5

38.

In a drawer, there are 6 white socks, 4 black socks, and 2 brown socks. You pick out a sock, replace it, then pick out a 2nd sock. What is the probability that you will pick a brown, then black sock?

a)

1/11

b)

1/18

c)

1/36

d)

2/33

39.

You roll two die.

What is the probability you will roll a 4, then roll a number less than 3?

a)

1/36

b)

1/18

c)

1/9

d)

1/6

40.
A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?
a)
5/11
b)
5/6
c)
1/3
d)
5
41.

You spin the spinner. How many possible outcomes are there?

a)

4

b)

8

c)

1

d)

6

42.
Find the theoretical probability of landing on orange or red if you spin the spinner.
a)
0
b)
3/8
c)
2/8
d)
1/4
43.
In a cup are the numbers 1 - 20. Find the theoretical probability of 
picking an even number. 
a)
10/20
b)
1/2
c)
1/20
d)
20/20
44.
In a cup are the numbers 1 - 20. Find the theoretical probability of 
picking a number divisible by 5. 
a)
4/20
b)
1/5
c)
5/20
d)
1/4
45.
An experiment consists of rolling a fair number cube. Find the theoretical probability of rolling a 3.
a)
1/6
b)
3/6
c)
1
d)
1/2
46.
An experiment consists of rolling a fair number cube. Find the theoretical probability of rolling a number greater than 3.
a)
4, 5, and 6
b)
3/6
c)
3
d)
1/2
47.
An experiment consists of rolling a fair number cube. Find the theoretical probability of rolling an 8.
a)
0
b)
8/6
c)
4/3
d)
1/2
48.
Find the theoretical probability of NOT landing on yellow if you spin the spinner.
a)
1/8
b)
7/8
c)
1
d)
7
49.
What is Theoretical Probability?
a)
The ratio of favorable outcomes to the total number of possible outcomes
b)
The ratio of favorable outcomes to the total number of trials in an experiment
c)
In probability, a controlled, repeated process (such as repeatedly tossing a coin).
d)
A single possible result.
50.

What is the probability of flipping a coin, getting tails?

a)

1/2

b)

1/3

c)

1/4

d)

Never, Tails never fails.

51.

What is the probability of spinning an even number?

a)

30%

b)

33%

c)

50%

d)

67%

52.
Probability can only be values between which two numbers?
a)
0 to 2
b)
0 to 10
c)
0 to 5
d)
0 to 1
53.
Find the probability of rolling greater than a 1 on a single die.
a)
6/6
b)
5/6
c)
4/6
d)
1/6
54.

The following M & M colors are in the bowl:

4 yellow, 6 orange, 3 green, 5 blue, 2 brown

What is the probability of selecting a brown candy?

a)

2/18

b)

1/9

c)

1/10

55.

Theoretical P(King)

a)

2/8

b)

1/8

c)

3/8

d)

1/4

56.
What statement does the shaded region represent?
a)
A C∪ B ∩ C
b)
C'
c)
A ∪ B
d)
B ∩ C ∪ A
57.
What is the P(B)?
a)
56/135
b)
52/135
c)
64/135
d)
63/135
58.
The probability of an event occurring, P(A), can be expressed as a fraction, decimal, or percent.
a)
True
b)
False
59.
What statement does the shaded region represent?
a)
A or B
b)
A and not B
c)
Not A
d)
Not A or B
60.

What is an event that will happen or has a probability of 1?

a)

theoretical

b)

probability

c)

mutually exclusive

d)

certain

61.

outcome with the same chance of occurring

a)

mutually exclusive

b)

impossible

c)

equally

d)

independent

62.

an event with a probability of zero

a)

impossible

b)

mutually exclusive

c)

outcome

d)

outcome

63.

The measure of the likelihood that an event will occur. The chance that an event will happen. A ratio of chance/all chances.

a)

odds

b)

probability

c)

outcomes

d)

tree diagram

64.
Possible results of an event
a)
outcomes
b)
compound event
c)
simple event
d)
probability
65.

There are 6 boys and 8 girls in a classroom. What is the probability that the teacher randomly selects a boy?

a)

8/6

b)

6/8

c)

3/7

d)

8/14

66.
X ∩ Y ∩ Z
a)
{ }
b)
{Phillip}
c)
{Billy, Phillip, Bryan, Perez}
d)
{Billy, Perez, Bryan}
67.

What is the probability the dessert has peanut butter in it?

a)

0.84

b)

0.58

c)

0.22

d)

0.59

68.

What is the probability that the dessert doesn't have peanut butter in it?

a)

1.16

b)

0.41

c)

0.38

d)

0.78

69.

What is the chance that the dessert is brownies and has peanut butter in it?

a)

0.94

b)

0.58

c)

0.99

d)

0.95

70.

What is the probability that the dessert is not brownies or does not have peanut butter in it?

a)

0.99

b)

0.42

c)

0.95

d)

0.64

71.

Knowing that the dessert has peanut butter in it, what is the probability that it's brownies?

a)

1.58

b)

0.58

c)

0.02

d)

0.98

72.

A pizza parlor surveyed 110 customers to determine their favorite pizza topping or combination of toppings. The results are shown below. Find P(Mushrooms). Reduce the fraction.

a)

310\frac{3}{10}

b)

39110\frac{39}{110}

c)

2655\frac{26}{55}

d)

455\frac{4}{55}

73.

In a game, we have a spinner with three equal sections (A, B, C) and a bag with one clear (c) marble and two blue (b) marbles. The game involves spinning the spinner and then drawing one marble out of the bag. What is the probability of spinner landing on A and drawing a clear (c) marble? Reduce the fraction.

a)

19\frac{1}{9}

b)

29\frac{2}{9}

c)

12\frac{1}{2}

d)

13\frac{1}{3}  

74.

What is the probability of getting two numbers the same?

a)

1/2

b)

4/16

c)

3/16

d)

4/12

75.

find the number of students with heights between:


170 and 175 cm.

a)

10

b)

12

c)

14

d)

16

76.

find the number of students with heights between:


I) 120 and 140 cm,

a)

20

b)

22

c)

24

d)

26

77.

find the number of students with heights between:


find the total number of students measured.

a)

120

b)

121

c)

123

d)

124

78.

How many leaves had a length less than 6 cm?

a)

7

b)

8

c)

9

d)

10

79.

How many people are there in the 50-70 age range?

a)

22

b)

23

c)

24

d)

25

80.

How many people are there in the 45-50 age range?

a)

3

b)

4

c)

5

d)

6

81.
What is the median length?
a)
40.5 cm
b)
30 cm
c)
24.5 cm
d)
32 cm
82.
Approximately how many items were longer than 34 cm?
a)
None
b)
8
c)
7.5
d)
7
83.
What is the Upper Quartile Length?
a)
28 cm
b)
30 cm
c)
33 cm
d)
20 cm
84.
What is the Interquartile Range?
a)
28 cm
b)
12 cm
c)
33 cm
d)
5 cm
85.
What is the Median Value?
a)
18
b)
22
c)
26
d)
28
86.
What is the Maximum Value?
a)
18
b)
22
c)
26
d)
28
87.
What is the Lower Quartile Value?
a)
18
b)
22
c)
26
d)
28
88.
What is the Interquartile Range?
a)
12
b)
10
c)
8
d)
6
89.

Connor does a survey on how much money 100 people spend over the Christmas period.

The results have been plotted on a cumulative frequency diagram.

Estimate the value of the 30th percentile.

a)

£ 24

b)

£ 20

c)

£ 30

d)

£ 28

90.

Eve collects information on the household spending per day for 100 families. The information has been summarised in the cumulative frequency diagram below.

The 70th percentile is £ (a)  

Write you answer as a figure.

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