1.1 - 1.2 Practice

Front

What is the least favorite juice among people?

Back

Grapes

Front

What is the relative frequency for High School Musical if 30 students surveyed and 9 preferred it?

Back

0.30

Front

Is HEIGHT a quantitative variable or categorical variable?

Back

Quantitative

Front

Is AREA CODE a quantitative variable or categorical variable?

Back

Categorical

Front

If 2340 people were surveyed and 468 preferred SciFi, how many people prefer SciFi?

Back

468

Front

Define relative frequency.

Back

Relative frequency is the ratio of the number of times an event occurs to the total number of trials or observations.

Front

What is a quantitative variable?

Back

A quantitative variable is a variable that can be measured numerically.

Front

What is a categorical variable?

Back

A categorical variable is a variable that can take on one of a limited, and usually fixed, number of possible values, assigning each individual or other unit of observation to a particular group.

Front

How do you calculate relative frequency?

Back

Relative frequency = (Number of times an event occurs) / (Total number of observations)

Front

What is the formula for finding the percentage of a preference in a survey?

Back

Percentage = (Number of people preferring a choice / Total number of people surveyed) x 100