WorksheetsBasic Probability
Total questions: 20
Worksheet time: 28mins
Name
Class
Date
1.
Determine whether the event is impossible, unlikely, as likely as not, likely, or certain. You flip a fair coin and the coin will land heads up.
a)
impossible
b)
unlikely
c)
even chance
d)
likely
2.
What is the probability of rolling 15 with a pair of dice?
a)
impossible
b)
unlikely
c)
equally likely
d)
likely
3.
What is the probability of spinning the spinner and landing on the 7?
a)
impossible
b)
equally likely
c)
unlikely
d)
very likely
4.
What is the probability of spinning an odd number?
a)
even chance
b)
likely
c)
certain
d)
impossible
5.
A probability near 1 is _______.
a)
never going to happen
b)
very likely to happen
c)
probably never going to happen
d)
equally likely to happen
6.
Probability can be expressed as a number between_____ and _____.
a)
0 and 100
b)
0 and 10
c)
0 and 1
d)
-1 and 1
7.
Probability can be written as ...
a)
a fraction
b)
a decimal
c)
a percent
d)
all of the above
8.
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
9.
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
10.
The probability of it raining today is 30%. What is the probability that it will NOT rain?
a)
30%
b)
70%
c)
100%
d)
0%
11.
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)
3/8
12.
What is the probability of spinning red?
a)
0
b)
5/12
c)
1/2
d)
3/4
13.
What is the probability of spinning green or blue?
a)
0
b)
5/12
c)
1/2
d)
3/4
14.
If you choose from the following M & M colors, what is the probability that you choose blue?
5 green
6 yellow
8 blue
7 brown
5 green
6 yellow
8 blue
7 brown
a)
8/26
b)
7/26
c)
8/25
d)
1/3
15.
Find the probability of not rolling a 2 on a single die.
a)
1/6
b)
2/6
c)
5/6
d)
2
16.
Find the experimental probability:
Roll dice: 1, 3, 3, 4, 4
Rolling a 1?
Roll dice: 1, 3, 3, 4, 4
Rolling a 1?
a)
3/5
b)
1/6
c)
2/5
d)
1/5
17.
What is the Theoretical Probability of landing on red?
a)
43%
b)
33.3%
c)
40%
d)
36%
18.
Looking at those who do not bike to school, what is the relative frequency (to the nearest percent) of boys?
a)
4%
b)
14%
c)
13%
d)
29%
19.
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
20.
What is the relative frequency of people that purchased no food?
a)
10%
b)
60%
c)
15%
d)
30%
100 %
