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WorksheetsIntroduction to Probability
Total questions: 35
Worksheet time: 2hrs 52mins
Probability can be defined as?
the chance of an event occurring
result of a single trial
consists of outcomes.
flipping a coin
It can be used to quantify what the “odds” are that a specific event will occur.
event
outcome
Probability
magic
A sample space is
is the result of a single trial of a probability experiment.
consists of outcomes.
probability
the set of all possible outcomes of a probability experiment.
which one is NOT a basic interpretation of probability
Subjective probability
Empirical probability
Classical probability
Adjacent probability
uses sample spaces to determine the numerical probability that an event will happen and based on predictable parameters
Theoretical probability
Empirical probability
Subjective probability
Adjacent probability
relies on geological and historical records to determine the likelihood of outcomes.
Subjective probability
Adjacent probability
Empirical probability
Classical probability
uses a probability value based on an educated guess, experience, intuition or estimate
Empirical probability
Adjacent probability
Subjective probability
Classical probability
cannot occur at the same time
no?
general events
mutually exclusive events
mutually inclusive events
if the fact that A occurs does not affect the probability of B occurring...
sure
independent events
mutually exclusive events
Subjective probability
is the probability that the second event B occurs given that the first event A has occurred.
Classical probability
Conditional probability
independent events
Subjective probability
5 green
6 yellow
8 blue
7 brown
P(green) =
If you are picking a card randomly from a deck of cards, the events of picking a jack and picking a heart are mutually exclusive.
True
False
When rolling a 6 sided die, what is the probability of rolling either an even number or a 5?
1/2
5/6
2/3
1/12
Danny has 20 chocolates. 5 are milk chocolates, 10 are dark chocolates, and 5 are white chocolates. What is the probability of getting a milk chocolate or a dark chocolate?
3/4
1/2
1/15
3/10
The chance of rolling a 2 is 1/6. What is the chance of not rolling a 2?
2/6
1/6
5/6
Not possible
How likely are you to NOT roll a 1 on a regular die? (Complement)
P' = 2/6
P' = 3/6
P' = 5/6
P' = 1/6
The probability that a randomly chosen American is a Republican is 0.35. What is the probability that a randomly chosen American is not Republican?
0.35
0.65
0.75
0.50
If Mrs. Mack polls the class and asks, "What is your favorite pizza topping?" Suppose that the responses include: 10% cheese; 30% pepperoni; 25% sausage; 5% ham. What percent of the class have another opinion?
20%
30%
35%
This cannot be calculated.
If Mrs. Mack polls the class and asks, "What is your favorite pizza topping?" Suppose that the responses include: 10% cheese; 30% pepperoni; 25% sausage; 5% ham. What is the probability that a student responded "pepperoni" or "sausage"?
30%
25%
55%
This cannot be calculated.
What is the probability you land on pink twice in a row?
1/16
1/4
1/8
1/64
You have a sack with 3 red marbles, 1 white marble, 5 blue marbles, 6 green marbles, and 3 orange marbles. What is the probability that you draw an orange and a NOT green marble?
1/9
1/27
1/3
1/324
What is the probability of spinning the spinner and landing on the 7?
impossible - 0 / 8
1 / 2
1 / 8
7 / 8
P(not A) =
*Remember to simplify.*
6/8
3/4
2/8
1/4
What is the probability of choosing a vowel from the alphabet? There are 26 letters in the Alphabet
21/26
5/26
1/21
7/21
What is the probability that you choose blue? *simplify
5 green
6 yellow
8 blue
7 brown
8/26
4/13
8/25
1/3
P(not E) =
*Remember to simplify.*
6/8
3/4
5/8
1/4
