Probability Two Way Tables

Front

What is a two-way table?

Back

A two-way table is a statistical table that displays the frequency distribution of two categorical variables, allowing for the analysis of the relationship between them.

Front

How do you calculate the probability of an event?

Back

Probability is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.

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 probability of the other event occurring.

Front

What is the probability of selecting a male employee from a group of 100 employees with 8 males?

Back

The probability is 8/100 or 0.08.

Front

How do you find the probability of two events occurring together?

Back

To find the probability of two events occurring together, multiply the probability of the first event by the probability of the second event, if they are independent.

Front

What is the probability of selecting a student who got an A or B if 35 out of 100 students received these grades?

Back

The probability is 35/100 or 0.35.

Front

How do you interpret the results of a two-way table?

Back

Results from a two-way table can be interpreted by analyzing the frequencies and calculating probabilities for different combinations of the two variables.

Front

What is conditional probability?

Back

Conditional probability is the probability of an event occurring given that another event has already occurred.

Front

How do you calculate conditional probability?

Back

Conditional probability is calculated by dividing the probability of both events occurring by the probability of the given event.

Front

What is the probability that a randomly selected student is male and does not play soccer if there are 33 males who do not play soccer out of 110 students?

Back

The probability is 33/110.