WorksheetsProbability 2
Total questions: 16
Worksheet time: 20mins
Name
Class
Date
1.
A survey explored the relationship between gender and band class. Which is a reasonable conclusion?
a)
There are more band members than non-band members
b)
There are more boys in the class than girls
c)
There are more boys in band than not in band
d)
More than half of the bands members in the class are girls
2.
Of the times when the forecast called for rain, what percent of the time did it actually rain?
a)
About 90%
b)
About 50%
c)
About 70%
d)
About 80%
3.
Given that a person likes chocolate ice cream, what is the relative frequency that they are a teenager?
a)
12/107
b)
12/269
c)
73/269
d)
107/269
4.
What is the relative frequency of people that purchased no food?
a)
120/400
b)
60%
c)
60/400
d)
10/400
5.
Which of the following describes theoretical probability?
a)
Perform an experiment to determine the probability
b)
Determining the expected probability of an event
c)
Perform a simulation and count the number of possible outcomes
d)
Use trials to count the number of desired outcomes
6.
Experimental Probability is:
a)
What Will happen.
b)
What actually happens.
c)
What should happen.
d)
What I think happens.
7.
What is the relative frequency of rolling a 6?
a)
6/20
b)
0/20
c)
6
d)
1/6
8.
Is this enough data to show the true probability of rolling a 6?
a)
Yes - clearly the dice is broken and will never roll a 6
b)
No - for greater accuracy more data is needed.
9.
How many total outfit options are represented?
a)
12
b)
22
c)
3
10.
A coin is flipped 3 times, determine the probability that we will get exactly two heads
a)
3/8
b)
2/8
c)
1/2
d)
1/4
11.
3 Marbles are in a bag a blue, a white and a red marble. The tree diagram for the situation is shown below, what is the probability of getting a red and a white marble in any order?
a)
2/9
b)
2/3
c)
1/9
d)
1/6
12.
3 Marbles are in a bag a blue, a white and a red marble. The tree diagram for the situation is shown below, what is the probability of getting a blue marble and a white marble in that order?
a)
1/9
b)
2/9
c)
1/12
d)
2/12
13.
What is the Probability of drawing a Blue Counter from Bag A?
a)
2/7
b)
3/7
c)
4/7
d)
5/7
14.
What is the Probability of drawing a Blue Counter from Bag B?
a)
2/8
b)
3/8
c)
4/8
d)
5/8
15.
What calculation describes the probability of drawing 2 red counters?
a)
3/7 + 5/8
b)
4/7 + 3/8
c)
4/7 x 3/8
d)
3/7 x 5/8
16.
What is the probability of drawing a blue counter from each bag?
a)
12/56
b)
7/15
c)
12/15
d)
7/56
100 %
