
Conditional Probability Concepts

Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Hard

Thomas White
FREE Resource
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8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a common issue when working with probability tree diagrams?
Drawing the tree diagram
Dealing with conditional probability
Understanding the concept of intersection
Calculating the total probability
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example, what is the probability of John taking the bus?
0.2
0.6
0.8
0.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in constructing a tree diagram for the example?
Determining the mode of transport
Finding the intersection
Calculating the total probability
Identifying the arrival state
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the vertical line in the notation 'P(L|B)' represent?
And
Or
Given
Not
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate the probability of being late given John took the bus?
Add the probabilities
Multiply the probabilities
Divide the intersection by the probability of taking the bus
Subtract the probabilities
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the general formula for conditional probability?
P(A or B) / P(B)
P(A and B) / P(A)
P(A and B) / P(B)
P(A) / P(B)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How would you calculate the probability of John not being late given he took the bus?
P(B and L) / P(not B)
P(B and not L) / P(B)
P(not L and B) / P(not B)
P(not B and L) / P(B)
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the key takeaway from the video regarding conditional probability?
Learn the general result for conditional probability
Always use the intersection symbol
Use only tree diagrams
Focus on the arrival state
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