
Probability Concepts: Unions and Intersections
Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main focus of the introduction section in the video?
Explaining the concept of probability in general.
Introducing the concepts of unions and intersections in probability.
Discussing the history of probability theory.
Explaining how to calculate probabilities using a calculator.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key consideration when dealing with union probabilities?
Adding probabilities of all events.
Subtracting overlapping probabilities to avoid double counting.
Ensuring all events are mutually exclusive.
Ignoring overlapping events.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are intersection probabilities generally smaller?
Because they consider all possible outcomes.
Because they ignore mutually exclusive events.
Because they are calculated using a different formula.
Because they only consider the overlap between events.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the card example, what is the probability of selecting a card that is both even and orange?
4 out of 6
3 out of 6
2 out of 6
1 out of 6
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in calculating a union probability in the card example?
Adding the probabilities of even and orange cards.
Subtracting the probability of odd cards.
Multiplying the probabilities of even and orange cards.
Ignoring the probability of overlapping cards.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What must be done to avoid a probability greater than one in union calculations?
Divide the probabilities by two.
Add all probabilities together.
Multiply the probabilities.
Subtract the overlapping probabilities.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the card example, how many cards are both even and orange?
Three cards
Two cards
Four cards
One card
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