Flashcard Practice: 2 way tables & Conditional Probability

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
+5
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a two-way table?
Back
A two-way table is a statistical table that displays the frequency distribution of variables. It allows for the analysis of the relationship between two categorical variables.
Tags
CCSS.8.SP.A.4
2.
FLASHCARD QUESTION
Front
Define conditional probability.
Back
Conditional probability is the probability of an event occurring given that another event has already occurred. It is denoted as P(A|B), which means the probability of A given B.
Tags
CCSS.HSS.CP.A.3
CCSS.HSS.CP.A.5
3.
FLASHCARD QUESTION
Front
How do you calculate conditional probability?
Back
To calculate conditional probability, use the formula: P(A|B) = P(A and B) / P(B), where P(A and B) is the probability of both events occurring.
Tags
CCSS.HSS.CP.A.3
CCSS.HSS.CP.A.5
4.
FLASHCARD QUESTION
Front
What does it mean if two events are independent?
Back
Two events are independent if the occurrence of one event does not affect the occurrence of the other. In this case, P(A|B) = P(A).
Tags
CCSS.HSS.CP.A.3
5.
FLASHCARD QUESTION
Front
What does it mean if two events are dependent?
Back
Two events are dependent if the occurrence of one event affects the occurrence of the other. In this case, P(A|B) ≠ P(A).
Tags
CCSS.HSS.CP.A.3
6.
FLASHCARD QUESTION
Front
What is the formula for finding the probability of the union of two events?
Back
The formula is P(A or B) = P(A) + P(B) - P(A and B).
Tags
CCSS.HSS.CP.B.7
7.
FLASHCARD QUESTION
Front
If 45% of children have a dog and 30% have a cat, what is the probability that a child has a dog given they have a cat?
Back
P(Dog|Cat) = P(Dog and Cat) / P(Cat) = 0.18 / 0.30 = 0.60 or 60%.
Tags
CCSS.HSS.CP.A.3
CCSS.HSS.CP.A.5
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