Final Exam Mixed Practice

Front

How many ways can a disc jockey choose and arrange 3 songs from 9 appropriate songs?

Back

504

Front

What is the probability that Mary passes given that she studies, if the probability that she studies is 8/9 and the probability that she studies and passes is 3/5?

Back

27/40

Front

How many different types of pizza can you order if you can choose 2 toppings from mushrooms, olives, pepperoni, pineapple, and sausage?

Back

10

Front

What is the process of finding the interquartile range for a set of data?

Back

Subtract Q1 from Q3.

Front

What is the probability that someone plays basketball if the options are .50, .68, .52, and .46?

Back

.52

Front

What is the formula for permutations of selecting r items from n items?

Back

n! / (n - r)!.

Front

What is the formula for combinations of selecting r items from n items?

Back

n! / (r!(n - r)!).

Front

Define the term 'probability'.

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Front

What does it mean if two events are independent in probability?

Back

Two events are independent if the occurrence of one does not affect the probability of the other.

Front

What is the definition of the median in a data set?

Back

The median is the middle value when the data set is ordered from least to greatest.