5.1 Defining Probability
5.2 The Addition Rule
5.3 Conditions & Independence
5.4 Successive Events
Random
100
The probability of all possible events must equal ____________.
1 or 100%
100
A survey was taken asking students about their extracurricular activities at a school. Let A = the probability of a student in the art club, and B = the probability of a student in the business club. What is the probability that a randomly selected student is in the business club?
0.65 or 65%
100
Two events are considered ____________ if knowing the outcome of one does not change the probability of the other occurring.
Independent
100
On a 6-sided die, what is the probability of rolling a 6 two times in a roll?
0.028 or 2.8%
100
How many dots appear on a pair of dice?
42
200
What is the statistical principle that explains why flipping a fair coin 1,000 times yields a heads proportion much closer to 50% than flipping it just 10 times (which might give you 70%).
The law of large numbers.
200
This term describes events that have no outcomes in common and cannot occur at the same time.
Mutually exclusive
200
What is the notation used to represent the probability of event A occurring given that event B has already occurred
P(A|B)
200
Your crush likes your IG story 35% of the time. What is the probability that they like your IG story 4 times in a row?
(0.35)4 = 0.015 or 1.5%
200
On what day does spring break for Compton HS start?
(e.g. March 29)
April 2nd
300
Let event A = getting an A on your test, and suppose P(A) = 0.45. Find P(AC).
0.65 or 65%
300
A survey was taken asking students about their extracurricular activities at a school. Let A = the probability of a student in the art club, and B = the probability of a student in the business club. What is the probability that a randomly selected student is not in either of the two clubs?
0.17 or 17%
300
A survey was taken asking students about their extracurricular activities at a school. Let A = the probability of a student in the art club, and B = the probability of a student in the business club. Find P(B|A).
0.57 or 57%
300
In a Hi-Chew bag, there are 20 pineapple-flavored pieces, 16 strawberry, and 8 melon. If Mr. Kim liked you so much, he gave you 4 pieces, what is the probability that all 4 pieces he gave you were strawberry-flavored?
0.013 or 1.3%
300
How many subscribers does MrBeast have?
(range of 50 million)
465 million
400
What’s the only letter not used in any U.S. state name?
Q
400
The following table shows the results of a survey that asked 100 students which sport they liked best: baseball, basketball, or football. What is the probability that a randomly selected student likes baseball or is male?
0.71 or 71%
400
The tree diagram represents the sample space for single-scoop ice cream sales. What is the probability that a customer gets chocolate ice cream in a cone?
0.4 * 0.25 = 0.1 or 10%
400
A standard deck of 52 cards has 4 cards of each value (e.g. 4xAces, 4x2s, 4xQueens) and 13 cards of each suite (heart, spades, clubs, diamond). What is the probability of drawing a card with a suit of hearts or with a value of 9?
0.31 or 31%
400
What day of the week does Christmas land on in 2026?
Friday
500
What does QR (in QR code) stand for?
Quick Response
500
Among 150 concert attendees, 92 wear hats, 77 wear sunglasses, and 35 wear both; what is the probability that a randomly selected person is wearing a hat or sunglasses?
134 concert attendees
500
The following table shows the results of a survey that asked 100 students which sport they liked best: baseball, basketball, or football. What is the probability that a randomly selected student likes football given that they are female?
13/52 = 0.25 or 25%
500
There is a 1% chance that a student will bring Mr. Kim snacks on a given day. What is the probability that at least one student will bring Mr. Kim snacks tomorrow if there are 30 students in the class?
1 - P(no students will bring) =
1 - (0.99)30 = 0.26 or 26%
500
How many minutes are in a full week?
10,080 minutes