Unit 2 Concepts Review

Front

What is the probability of pulling out a red skittle OR an orange skittle from a bag with 36 skittles (12 red, 5 orange)?

Back

17/36

Front

Probability is defined as...?

Back

the likelihood that an event will occur.

Front

What is the mean number of pages Carolyn wrote per day if she wrote 9, 8, 12, 6, and 10 pages?

Back

9

Front

A data set can have more than one _______

Back

Mode

Front

What type of association does a graph with a downward slope have?

Back

negative

Front

What is the formula for calculating the mean of a data set?

Back

Mean = (Sum of all values) / (Number of values)

Front

What is the mode of the following data set: 2, 3, 4, 4, 5, 5, 5, 6?

Back

5

Front

What does a probability of 0 mean?

Back

The event will not occur.

Front

What does a probability of 1 mean?

Back

The event is certain to occur.

Front

In probability, what is the complement of an event?

Back

The probability that the event does not occur.