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- Im2 Hw #21 Probability Expected Value, Union, Intersection
IM2 HW #21 Probability - Expected Value, Union, Intersection
Flashcard
•
Mathematics
•
9th - 10th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
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15 questions
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1.
FLASHCARD QUESTION
Front
What does the union of two events A and B represent?
Back
The union of two events A and B, denoted as A or B, represents the event that either A occurs, B occurs, or both occur.
2.
FLASHCARD QUESTION
Front
What does the intersection of two events A and B represent?
Back
The intersection of two events A and B, denoted as A and B, represents the event that both A and B occur simultaneously.
3.
FLASHCARD QUESTION
Front
What is the formula for calculating the expected value (EV) of a random variable?
Back
EV = Σ (Probability of each outcome × Value of each outcome).
4.
FLASHCARD QUESTION
Front
If a coin is flipped, what is the probability of getting heads?
Back
The probability of getting heads when flipping a fair coin is 1/2.
5.
FLASHCARD QUESTION
Front
What is the probability of not getting event A (P(not A)) if P(A) = 1/4?
Back
P(not A) = 1 - P(A) = 1 - 1/4 = 3/4.
6.
FLASHCARD QUESTION
Front
What is an example of a certain event in probability?
Back
Landing on a number when rolling a standard die is a certain event, as it will always happen.
7.
FLASHCARD QUESTION
Front
If you flip a coin three times, what is the total number of possible outcomes?
Back
The total number of possible outcomes is 2^3 = 8.
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