Exam 2: Organizing and Visualizing Data

TABLE 2-14 The table below contains the number of people who own a portable DVD player in a sample of 600 broken down by gender. -Referring to Table 2-14,________ percent of the 600 were females who owned a portable DVD.

TABLE 2-13 Given below is the stem-and-leaf display representing the amount of detergent used in gallons (with leaves in tenths of gallons)in a day by 25 drive-through car wash operations in Phoenix. 9 | 1 4 7 10 | 0 2 2 3 8 11 | 1 3 5 5 6 6 7 7 7 12 | 2 2 3 4 8 9 13 | 0 2 -Referring to Table 2-13,construct a relative frequency or percentage distribution for the detergent data,using "9.0 but less than 10.0" as the first class.

When comparing two or more large sets of numerical data,the distributions being developed should use the same ________.

The percentage distribution cannot be constructed from the frequency distribution directly.

The larger the number of observations in a numerical data set,the larger the number of class intervals needed for a grouped frequency distribution.

TABLE 2-11 The ordered array below resulted from selecting a sample of 25 batches of 500 computer chips and determining how many in each batch were defective. -Referring to Table 2-11,if a frequency distribution for the defects data is constructed,using "0 but less than 5" as the first class,the frequency of the "20 but less than 25" class would be ________.

TABLE 2-12 The table below contains the opinions of a sample of 200 people broken down by gender about the latest congressional plan to eliminate anti-trust exemptions for professional baseball. -Referring to Table 2-12,________ percent of the 200 were males who were not against the plan.

A side-by-side chart is two histograms plotted side-by-side.

TABLE 2-5 The following are the duration in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier. -Referring to Table 2-5,what is the cumulative relative frequency for the percentage of calls that lasted 10 minutes or more?

When constructing charts,the following is plotted at the class midpoints: