Probability - Assessment

1.

Multiple Choice

1 min

1 pt

What is the probability that the person picked will be a boy given they speak german?

.7273

.4

.16

.22

2.

Multiple Choice

1 min

1 pt

What is the probability that a female is chosen given they like a Toyota?

.525

.4627

.6774

.3143

3.

Multiple Choice

30 sec

1 pt

What is the probability that they speak French given that they are a girl?

2.14

.24

.4

.8571

4.

Multiple Choice

1 min

1 pt

What is the probability that a student plays an instrument?

.55

.5

.45

.4

5.

Multiple Choice

1 min

1 pt

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.

3/20

1/4

3/31

2/27

6.

Multiple Choice

1 min

1 pt

A day in the year is randomly chosen. Given the day is in the month of December, what is the probability the day is the 25^th? (December has 31 total days.)

8.5%

8.84%

80.6%

3.2%

7.

Multiple Choice

1 min

1 pt

A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement. P(1st orange then green)

1/15

2/15

3/31

1/5

8.

Multiple Choice

1 min

1 pt

A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement.P(both marbles are purple)

2/9

1/3

1/2

1/4

9.

Multiple Choice

15 mins

1 pt

There are six nickels and seven dimes in your pocket. You randomly pick a coin out of your pocket and then return it to your pocket. Then you randomly pick another coin. What is the probability that the coin is a nickle both times?

36/169

6/13

5/16

3/19

10.

Multiple Choice

1 min

1 pt

A basket contains four apples and six peaches. You randomly select one piece of fruit and eat it. Then you randomly select another piece of fruit. What is the probability that both pieces of fruit are apples.

2/15

3/17

1/19

6/21

11.

Multiple Choice

1 min

1 pt

There are seven boys and seven girls in a class. The teacher randomly selects one student to answer a question. Later, the teacher randomly selects a different student to answer another question. What is the probability that the first student is a boy and the second student is a girl?

7/26

1/2

2/17

8/29

12.

Multiple Choice

1 min

1 pt

Which is the best way to represent answering 25 multiple-choice questions with 4 choices for each answer?

spin a spinner with four sections 25 times

roll a die 25 times

flip a coin 25 times

roll a die 4 times

13.

Multiple Choice

1 min

1 pt

A certain brand of TV has a 50% chance of being defective. Which model could be used to determine the probability that when two TVs are chosen, they will both be defective?

spin a spinner with 4 equal sections

roll a die twice

flip a coin twice

flip a coin, then roll a die

14.

Multiple Choice

1 min

1 pt

Samuel has 5 different colors of pens and 2 different colors of paper. Which model could be used to show how many different choices he has?

spin a spinner with 5 sections, then flip a coin

roll a die 5 times

flip a coin 5 times

roll a die, then flip a coin 5 times

15.

Multiple Choice

1 min

1 pt

What statement does the shaded region represent

A or B

Not A

A and B

Not B

16.

Multiple Choice

1 min

1 pt

What is P(Foreign language | Sport)?

14/27

7/12

23/47

37/47

17.

Multiple Choice

1 min

1 pt

How many senior boys play football or wrestle?

9

21

30

39

18.

Multiple Choice

1 min

1 pt

What percentage of the days that it rained, did they forecast no rain?

About 20%

About 18%

About 14%

About 12%

19.

Multiple Choice

1 min

1 pt

What percentage of girls have blonde hair?

30%

32%

29%

40%

20.

Multiple Choice

1 min

1 pt

A bag contains 5 red marbles and 4 pink marbles. A marble is randomly drawn and then replaced. What is the probability the first marble is pink and the second is red?

26.9%

24.7%

20.0%

5%

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