WorksheetsBasic Probability Review
Total questions: 23
Worksheet time: 23mins
How many outcomes are in the sample space for tossing one coin?
1
2
4
8
Which of the following are possible samples spaces for tossing 2 coins? (May be more than one correct answer)
{H, T, H, T}
{HH, HT, TH, TT}
{H, T}
{T, H}
{TT, HH, TH, HT}
You give the answer to a probability problem as 6/5. The teacher marks it wrong. Why?
It should have been 5/6.
Its not written as a percent.
Its more than 1.
Its not written as a decimal.
Roll a die one time. Find P(rolling a 4).
1/4
2/3
1/6
1/2
Roll a die one time. Find P(even number).
1/2
1/3
3/6
2/6
Roll a die one time. Find P(a number less than 7).
0
1
7/6
1/6
Draw one card from a standard deck. Find P(ace)
1/13
1/4
4/13
1/52
Draw one card from a standard deck. Find P(diamond)
8%
25%
31%
2%
Draw one card from a standard deck. Find P(ace of diamonds)
1/13
1/4
4/13
1/52
Probability can be expressed as a number between_____ and _____.
90 and 100
0 and 10
0 and 1
-1 and 1
Determine the probability of the following even occuring: You flip a fair coin and the coin will land heads up.
0
1/4
1/2
1
What is the probability of spinning the fair 8-sided spinner and landing on the 7?
impossible - 0 / 8
1 / 2
1 / 8
7 / 8
What is the probability of rolling a fair 6-sided die and having it land as a six?
1/6
5/6
1/3
1/2
What is the probability of rolling a fair 6-sided die and having it land on an odd number?
3/4
1/3
1/2
2/5
What is the probability of spinning green or blue (assuming each slice/section is equal in size)?
0
5/12
1/2
3/4
Find the probability of NOT rolling a 2 on a single fair 6-sided die.
1/6
2/6
5/6
2
If you randomly pick from the following M & M colors from a bag, what is the probability that you choose blue?
5 green
6 yellow
8 blue
7 brown
8/26 or 4/13
7/26
8/25
1/3
If there is a 40% chance for rain, then there is a 60% chance that it will not rain. What rule in probability does the 60% conclusion represent?
Probability Assignment Rule
Disjoint Rule
Subtraction Rule
Complement Rule
A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?
5/11
5/6
1/3
5
P(not A) =
*Remember to simplify.*
6/8
3/4
2/8
1/4
