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You will be taken to our partner Chegg. A 17—19 years old C What is the midpoint of the class ? Page 7. What type of distribution would be best? What is the lower class limit of the class 13—17? What is the midpoint of the class 12—15? What is the upper class boundary of the class 23—35?
If the limits for a class were 20—38, the boundaries would be Ans: True Difficulty: Easy Section: 2. For grouped frequency distributions, the upper limits and dividing by 2. Ans: class midpoint Difficulty: Easy Section: 2. What is the lower class limit in the class ? Which of the following pairs of class limits would be appropriate for grouping the numbers 14, 17, 12, and 19? Thirty students recorded the colors of their eyes, choosing from the colors brown, blue, green, hazel, and black.
This data can be appropriately summarized in a n. A open-ended distribution C grouped frequency distribution B categorical frequency distribution D upper boundary Ans: B Difficulty: Moderate Section: 2. What are the boundaries of the class 1.
For the class Ans: False Difficulty: Easy Section: 2. When the range is large, and classes that are several units in width are needed, a frequency distribution is used. Ans: grouped Difficulty: Moderate Section: 2. 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.
Construct a frequency polygon from the following frequency distribution. Temperature Frequency Find the class with the greatest number of data values. An ogive is also called a cumulative frequency graph. The three most commonly used graphs in research are the histogram, the and the cumulative frequency graph ogive. Ans: frequency polygon Difficulty: Easy Section: 2. The frequency polygon and the histogram are two different ways to represent the same data set. For a given data set, the ogive and the frequency polygon will have the same overall shape.
Using the ogive shown below, what is the cumulative frequency of data values less than or equal to 16? Graphs that show distributions using proportions instead of raw data as frequencies are called A relative frequency graphs.
C histograms. B ogive graphs. D frequency polygons. Ans: A Difficulty: Easy Section: 2. Which type of graph represents the data by using vertical bars of various heights to indicate frequencies? The frequency polygon is a graph that displays the data by using lines that connect points plotted for the frequencies at the midpoints of the classes. A histogram is a graph that represents the cumulative frequencies for the classes in a frequency distribution.
Ans: False Difficulty: Moderate Section: 2. Given the following frequency distribution, how many pieces of data were less than Class Boundaries Frequencies 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. Ans: right-skewed Difficulty: Moderate Section: 2. A local fundraiser wants to graphically display the contributions he has received over the past five years.
Construct a time series graph for the following data. An automobile dealer wants to construct a pie graph to represent types of cars sold in July. He sold 72 cars, 16 of which were convertibles. How many degrees should be used for the convertibles section? If a data set showing types of pizza ordered at a particular restaurant indicates 24 out of 72 orders were for pepperoni pizza, how many degrees would be needed to represent pepperoni pizza in a pie chart?
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