Exam 2: Frequency Distributions and Graphs

For a given data set, the ogive and the frequency polygon will have the same overall shape.

What is the midpoint of the class 13-16 ?

A time series graph is useful for detecting trends that occur over the period of time.

Construct a pie chart for the following distribution:

Which of the following could be an ogive?

A time series graph represents data that occur over a specific time period.

What are the boundaries of the class 1.87-3.43 ?

If a frequency distribution had class boundaries of 132.5-147.5, what would be the class width?

Which type of graph represents the data by using vertical bars of various heights to indicate frequencies?

Given the following frequency distribution, how many pieces of data were less than 28.5?

Greg wants to construct a frequency distribution for the political affiliation of the employees at Owen's Hardware Store. What type of distribution would be best?

If the graph of a frequency distribution has a peak and the data tapers off more slowly to the right and more quickly to the left, the distribution is said to be ____________.

How many values are in the data set whose histogram is shown below ?

The cumulative frequency for a class is the sum of the frequencies of the classes less than and equal to the upper boundary of the specific class.

Which of the following is a histogram?

What type of graph is the figure below?

What is the lower class limit in the class 7-11 ?

A pie graph would best represent the number of inches of rain that has fallen in Ohio each day for the past 2 months.

Given the following two sets of data, draw a back-to-back stem and leaf plot. A - 12, 22, 22, 24, 34, 31, 26, 35, 27, 39, 49, 10 B - 45, 36, 23, 16, 37, 28, 18, 13, 10, 23, 30, 31

The percentages of white, wheat, and rye bread sold at a supermarket each week is best shown using a __________ graph.