Ap Stats Summer(part 4)

Question 1

What is a quantitative variable?

Answer 1

Quantitative variables are numeric like: Height, age, number of cars sold, SAT score

Question 2

What is a categorical variable?

Answer 2

Qualitative variables are like categories: Blonde, Listens to Hip Hop, Female, yes, no… etc.

Question 3

What do we sometimes call a categorical variable?

Answer 3

Qualitative

Question 4

What is quantitative data?

Answer 4

The actual numbers gathered from each subject. 211 pounds. 67 beats per minute.

Question 5

What is categorical data?

Answer 5

The actual individual category from a subject, like “blue” or “female” or “sophomore”

Question 6

What is a random sample?

Answer 6

When a sample is taken by random means such as rolling a dice or taking names out of a hat

Question 7

What is frequency?

Answer 7

How often something comes up

Question 8

data or datum?

Answer 8

Datum is singular, data is plural

Question 9

What is a frequency distribution?

Answer 9

A table, or a chart, that shows how often certain values or categories occur in a data set.

Question 10

What is meant by relative frequency?

Answer 10

The PERCENT of time something comes up (frequency/total)