2. Describing Data with Tables and Graphs

A frequency distribution lists the _____of occurrences of each category of data, while a relative frequency distribution lists the______of occurrences of each category of data.

Given the following frequency distribution of quiz scores: Score: $5$, $6$, $7$, $8$; Frequency: $2$, $4$, $3$, $1$. What is the mean quiz score?

Which of the following is a characteristic of frequency distributions?

Regarding frequency tables and frequency distributions, which of the following statements is true?

In a relative frequency distribution, what does each $relative frequency$ represent?

Which of the following is a primary benefit of representing data sets using frequency distributions?

Which of the following is a primary benefit of using graphs of frequency distributions in statistics?

In a frequency distribution for a numerical variable, intervals are:

Regarding frequency tables and frequency distributions, which one of the following is true?

Which of the following frequency tables best represents a skewed data set? Select the single correct answer.

Exercises 29–34 involve large sets of data, so technology should be used. Complete lists of the data are not listed in Appendix B, but they can be downloaded from the website TriolaStats.com. Use the indicated data and construct the frequency distribution.

Earthquake Depths Use the depths (km) of the 600 earthquakes included in Data Set 24 “Earthquakes.” Use a class width of 10.0 km and begin with a lower class limit of 0.0 km. Does the frequency distribution appear to be a normal distribution?

Which of the following is least likely to be used as a criterion when choosing the number of bins ($n$ classes) in a frequency distribution?

In frequency distributions, class width is found by $?$.

Which of the following best describes a frequency distribution that is skewed to the right?

Why is it generally recommended that the number of classes in a frequency distribution be between $5$ and $20$?