Exam 2: Describing Data: Frequency Tables, Frequency Distributions, and Graphic Presentation

To summarize the gender of students attending a college in a frequency distribution, a total of at least ______ classes would be required.

The following frequency distribution shows the distribution of delivery times (in days) for swimstuff.com customer orders during the last month. What is the relative frequency for orders delivered in three days or more?

A data set consists of 40 observations. For a quantitative variable, how many classes would you recommend for the frequency distribution?

Refer to the following breakdown of responses to a survey of "Are you concerned about being tracked while connected to the Internet?" What type of chart should be used to show relative class frequencies?

The monthly salaries of a sample of 100 employees were rounded to the nearest $10. They ranged from a low of $1,040 to a high of $1,720. If we want to condense the data into seven classes, what is the most convenient class interval?

A pie chart is similar to a relative frequency distribution.

A frequency distribution for qualitative data has class limits.

Refer to the following breakdown of responses to a survey of "How confident are you that you saved enough to retire?" What type of chart should be used to show relative class frequencies?

Refer to the following breakdown of responses to a survey of room service in a hotel. What is the class with the greatest frequency?

Refer to the following frequency distribution on days absent during a calendar year by employees of a manufacturing company: How many employees were absent from 6 up to 12 days?

Refer to the following distribution of commissions: What is the class interval?

A data set has 100 observations. In the data, a quantitative variable's highest value is 117 and its lowest value is 47. What is the minimum class interval that you would recommend?

What is the difference between a bar chart and a pie chart?

Refer to the following distribution of ages: What is the class interval?

In a frequency distribution, a class defined as "Under $100" and "$1,000 and over" is called a(n) ____________.

The number of observations in each class of a frequency distribution is called a ________________________.

In a bar chart, why are there spaces between the bars on the horizontal axis?

A data set has 200 observations. In the data, a quantitative variable's highest value is 1080 and its lowest value is 960. What is the minimum class interval that you would recommend?

When data is collected using a qualitative, nominal variable (in other words, male or female), what is true about a frequency distribution that summarizes the data?

When data is collected using a qualitative, nominal variable, what is true about a frequency distribution that summarizes the data?