Conditional Probability with Two-Way Tables

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is Conditional Probability?
Back
The probability of an event occurring given that another event has already occurred.
2.
FLASHCARD QUESTION
Front
What is a Two-Way Table?
Back
A table that displays the frequency distribution of two categorical variables.
3.
FLASHCARD QUESTION
Front
How do you calculate Conditional Probability using a Two-Way Table?
Back
Divide the frequency of the event of interest by the total frequency of the condition.
4.
FLASHCARD QUESTION
Front
What does P(A|B) represent?
Back
The probability of event A occurring given that event B has occurred.
5.
FLASHCARD QUESTION
Front
What is the formula for Conditional Probability?
Back
P(A|B) = P(A and B) / P(B) if P(B) > 0.
6.
FLASHCARD QUESTION
Front
What is the significance of the marginal totals in a Two-Way Table?
Back
They show the total counts for each category, helping to understand the overall distribution.
7.
FLASHCARD QUESTION
Front
What is the probability that a student plays an instrument given they do not play a sport?
Back
Use the formula P(Instrument|No Sport) = P(Instrument and No Sport) / P(No Sport).
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