Unit 2A Review SKG

Front

What is 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.

Front

How do you calculate P(Male | Full Time)?

Back

To calculate P(Male | Full Time), use the formula: P(Male | Full Time) = P(Male and Full Time) / P(Full Time).

Front

What is the Fundamental Counting Principle?

Back

The Fundamental Counting Principle states that if one event can occur in m ways and a second can occur independently in n ways, then the two events can occur in m x n ways.

Front

How many outcomes are there when flipping 4 different 2-sided coins?

Back

There are 16 outcomes when flipping 4 different 2-sided coins, calculated as 2^4 = 16.

Front

What is the formula for finding the probability of two events occurring together?

Back

The probability of two events A and B occurring together is given by P(A and B) = P(A) * P(B|A) if A and B are dependent.

Front

What is the probability of holding a Visa and AA card given that a customer holds a Visa?

Back

The probability is calculated as P(Visa and AA | Visa) = P(Visa and AA) / P(Visa) = 40/1500 = 0.0267.

Front

What does P(A | B) represent?

Back

P(A | B) represents the probability of event A occurring given that event B has occurred.

Front

How do you find the probability of an event not occurring?

Back

The probability of an event not occurring is calculated as 1 - P(event occurring).

Front

What is a tree diagram in probability?

Back

A tree diagram is a visual representation of all possible outcomes of an event, used to calculate probabilities.

Front

What is the probability of tossing a head first and then a tail in two coin tosses?

Back

The probability is 1/4, calculated as P(Head first) * P(Tail second) = (1/2) * (1/2) = 1/4.