W25 6.12CD Understanding Data Summaries and Distributions

Front

What is the range of a data set?

Back

The range is the difference between the highest and lowest values in a data set.

Front

Calculate the range of the data set: 15, 22, 13, 19, 25.

Back

12

Front

What is a survey?

Back

A survey is a method of collecting data by asking people questions.

Front

What does it mean if a fruit is the most popular in a survey?

Back

It means that the highest percentage of respondents chose that fruit as their favorite.

Front

What is the interquartile range (IQR)?

Back

The IQR is the difference between the first quartile (Q1) and the third quartile (Q3) in a data set.

Front

Find the interquartile range (IQR) of the data set: 5, 7, 8, 12, 14, 18, 21.

Back

11

Front

What is the mode of a data set?

Back

The mode is the value that appears most frequently in a data set.

Front

Which of the following is the mode of the data set: 3, 7, 3, 5, 9, 3, 8?

Back

3

Front

What is the mean of a data set?

Back

The mean is the average of all the values in a data set, calculated by dividing the sum of the values by the number of values.

Front

What is the mean of the following data set: 4, 8, 6, 10, 12?

Back

8