Chapter 1 TEST

Front

What is the mean of the data: 17, 27, 26, 2, 1, 21, 13, 16, 19, 5, 7?

Back

14

Front

How do you find the Inter-quartile Range (IQR)?

Back

IQR = Q3 - Q1

Front

How many people watched more than 6 hours of TV?

Back

17

Front

What type of variables are age, marital status, and income?

Back

2 quantitative, 1 categorical

Front

Classify Zip Codes as quantitative or categorical.

Back

Categorical

Front

What is the formula for calculating the mean?

Back

Mean = (Sum of all data points) / (Number of data points)

Front

What does Q1 represent in a data set?

Back

Q1 is the first quartile, representing the 25th percentile.

Front

What does Q3 represent in a data set?

Back

Q3 is the third quartile, representing the 75th percentile.

Front

What is the range of a data set?

Back

Range = Max value - Min value

Front

Define categorical data.

Back

Categorical data represents characteristics or qualities that can be divided into groups.