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

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?

A small sample of computer operators shows monthly incomes of $1,950, $1,775, $2,060, $1,840, $1,795, $1,890, $1,925, and $1,810. What are these ungrouped numbers called?

A _____ chart is useful for displaying a frequency distribution for a qualitative variable.

A student was interested in the cigarette smoking habits of college students and collected data from an unbiased random sample of students. The data is summarized in the following table: What type of chart best represents the frequency table?

A group of 100 students was surveyed about their interest in a new International Studies program. Interest was measured in terms of high, medium, or low. In the study, 30 students responded high interest, 40 students responded medium interest, and 30 students responded low interest. What is the relative frequency of students with high interest?

Refer to the following information from a frequency distribution for "heights of college women" recorded to the nearest inch: the first two class midpoints are 62.5" and 65.5". What are the class limits for the lowest class?

In a bar chart, the x-axis is labeled with the values of a qualitative variable.

Refer to the following breakdown of responses to a survey of "Are you concerned about being tracked while connected to the Internet?" What is the class with the greatest frequency?

For a frequency distribution of quantitative data, if every individual, object, or measurement can be assigned to a class, the frequency distribution is __________.

Refer to the following information from a frequency distribution for "heights of college women" recorded to the nearest inch: the first two class midpoints are 62.5" and 65.5". What are the class limits for the third class?

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

Refer to the following breakdown of responses to a survey of room cleanliness in a hotel. What percent of the responses indicated that customers were satisfied?

Refer to the following frequency distribution on days absent during a calendar year by employees of a manufacturing company: How many employees were absent fewer than six days?

What is the difference between a frequency distribution and a cumulative frequency distribution?

Refer to the following distribution of commissions: For the preceding distribution, what is the midpoint of the class with the greatest frequency?

In a frequency distribution, the number of observations in a class is called the class ________.

To summarize the gender of students attending a college, the number of classes in a frequency distribution depends on the number of students.

To construct a pie chart, the class frequencies are converted to __________.

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?

When classes in a frequency table are constructed so that each observation will fit into only one class, the categories are ______________________.