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Probability Review

Total questions: 32

Worksheet time: 8hrs 0mins

Name
Class
Date
1.

Lauren spins the spinner with 8-equal sized sections one time. Drag the tiles to arrange the events in order from least likely to most likely.

a)

spinning a 4 or 5

b)

spinning a 6

c)

spinning an even number

d)

spinning a number greater than 5

1)
2)
3)
4)
2.

A box contains 4 red pencils, 6 blue pencils, 5 black pencils, and 3 green pencils. The best description of the likelihood of selecting a blue pencil at random from the box is ​​​ (a)   . ​ ​

Choose from the below words
unlikely
impossible
equally likely
likely
certain
3.

Which of the following best describes the likelihood of the spinner landing on a number less than 6?

a)

impossible

b)

unlikely

c)

equally likely

d)

likely

e)

certain

4.

During the first several rounds of a golfing league, Anthony made par or better on 32 out of 80 holes. Based on this relative frequency, how many pars or better could he be expected to make on the remaining 160 holes?

a)

54 pars or better

b)

60 pars or better

c)

64 pars or better

d)

70 pars or better

5.

A deli offers the types of bread and sandwiches show in the table. How many possible outcomes are there?

(a)  

6.

If you toss a coin 10 times and get tails each time, which of the following is true?

a)

The probability of getting a tail on the next toss is more than 12.\frac{1}{2}.

b)

The probability of getting a head on the next toss is more than 12.\frac{1}{2}.

c)

The probability of getting a head on the next toss is 12.\frac{1}{2}.

d)

The probability of getting a tail on the next toss is greater than the probability of getting a head.

7.

Papa Johns wants to determine how often it delivers to three different areas of Twinsburg. The table shows the areas from a random sample of 80 deliveries. Based on this data, if the driver makes 200 deliveries, how many will be to the southern area of Twinsburg?

a)

35

b)

55

c)

80

d)

110

8.

A coin is flipped three times. What is the probability that the coin will land tails up once and heads up twice, if the order doesn't matter?

(Hint: Draw a tree diagram to help you.)

a)

18\frac{1}{8}

b)

14\frac{1}{4}

c)

34\frac{3}{4}

d)

12\frac{1}{2}

e)

38\frac{3}{8}

9.

Probability ranges from 0 (impossible) to 1 (certain).

a)

true

b)

false

10.

Cole has two bags of marbles. The first bag contains 6 red, 5 blue, & 4 green marbles. The second bag contains 3 red, 2 blue, & 4 green marbles. Cole will randomly select 1 marble from each bag. What is the probability he selects a blue marble from each bag?

a)

5/9

b)

1/35

c)

1/6

d)

2/27

11.

The spinner shown has eight congruent sections. The spinner is spun 120 times. What is a reasonable prediction for the number of times the spinner will land on an even number?

a)

75

b)

45

c)

15

d)

40

12.

On Roy's shelf are:

-6 mystery books

-5 science books

-4 history books

-3 adventure books

Roy will randomly choose 1 book to read. What is the probability that he will choose an adventure book?

a)

1/3

b)

1/18

c)

1/5

d)

1/6

13.

A classroom is arranged with 8 seats in the front row, 10 seats in the middle row, and 12 seats in the back row. The teacher randomly assigns seats to students as they enter the classroom. What is the probability that the first student who enters the classroom will be assigned a seat in the front row?

a)

2/5

b)

2/3

c)

4/11

d)

4/15

14.

Jack tossed a coin three times. Which tree diagram shows all the possible outcomes of the coin landing heads up or tails up?

a)
b)
c)
d)
15.
What is sample space?
a)
All of the Outcomes
b)
What Will Happen
c)
What Can Happen
d)
What I want to Happen
16.
How many outcomes are there with tossing a coin and rolling a dice?
a)
2
b)
6
c)
12
d)
24
17.
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)
2/20
d)
1/10
18.
Christopher picks a marble at random. Without putting the first marble back, he picks a second marble at random. Is this even Dependent or Independent?
a)
Independent 
b)
Dependent
19.
What is the probability of rolling a cube and having it land as a six?
a)
1/6
b)
5/6
c)
1/3
d)
1/2
20.
What is the probability of rolling a cube and having land as an odd number?
a)
3/4
b)
1/3
c)
1/2
d)
2/5
21.

There are 4 jacks in a standard deck of 52 playing cards. If Peyton selects a card at random, what is the probability that it will be a jack?

a)

1/13

b)

1/52

c)

1/2

d)

12/13

22.
You flip a nickel three times.
Find the probability that all flips will land on tails.
a)
1/2
b)
1/4
c)
1/6
d)
1/8
23.
In a box there are 3 red pens, 2 green pens, and 1 blue pen. What is the probability of picking a red pen, replacing it, and then picking a green pen?
a)
1/2
b)
4/11
c)
1/6
d)
2/3
24.

Nathan spins the spinner below two times. What is the probability Nathan will spin red on the first spin and blue on the second spin?

a)

9/64

b)

9/25

c)

3/8

d)

1/4

25.
What is the probability of tossing two six-sided dice and both landing on 3?
a)
1/6
b)
1/36
c)
1/4
26.
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%
27.
a)
23
b)
25
c)
35
d)
50
28.
Bag A contains 9 red marbles and 3 green marbles. Bag B contains 9 black marbles and 6 orange marbles. Find the probability of selecting one green marble from bag A and one black marble from bag B.  P(green, black)
a)
3/20
b)
1/4
c)
3/31
d)
2/27
29.
A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement. P(orange,green)
a)
1/15
b)
2/15
c)
3/31
d)
1/5
30.
A bag contains 2 blue marbles, 3 black marbles, and 5 red marbles. Mrs. Grow picks one marble, replaces it, then picks another. What is the probability of them both being blue?
P(blue and blue) 
a)
1/25
b)
1/5
c)
1/20
d)
2/5
31.
Determine if the following events are dependent or independent.
Anna flips a coin two times.
a)
Independent
b)
Dependent
32.
Determine if the following events are dependent or independent.
Anna draws a card from a bag, does not replace it and draws a second time..
a)
Independent
b)
Dependent