Exam 2: Charts and Graphs

The staff of Mr.Wayne Wertz,VP of Operations at Portland Peoples Bank,prepared a cumulative frequency ogive of waiting time for walk-in customers. The percentage of walk-in customers waiting one minute or less was _________.

For any given data set,a frequency distribution with a larger number of classes will always be better than the one with a smaller number of classes.

Each day,the manager at Jamie's Auto Care Shop prepares a frequency distribution and a histogram of sales transactions by dollar value of the transactions.Friday's histogram follows. On Friday,the approximate number of sales transactions in the 75-under 100 category was _____________.

A cumulative frequency polygon is also called an ogive.

The staff of Mr.Wayne Wertz,VP of Operations at Portland Peoples Bank,prepared a frequency histogram of waiting time for drive up ATM customers. Approximately _____ drive up ATM customers waited less than 2 minutes.

In a histogram,the tallest bar represents the class with the highest cumulative frequency.

A recent survey of U.S.automobile owners showed the following preferences for exterior automobile colors: What are the top two color preferences for automobiles?

The difference between the highest number and the lowest number in a set of data is called the differential frequency.

Each day,the office staff at Oasis Quick Shop prepares a frequency distribution and an ogive of sales transactions by dollar value of the transactions.Saturday's cumulative frequency ogive follows. The total number of sales transactions on Saturday was _____________.

A summary of data in which raw data are grouped into different intervals and the number of items in each group is listed is called a frequency distribution.

Each day,the office staff at Oasis Quick Shop prepares a frequency distribution and an ogive of sales transactions by dollar value of the transactions.Saturday's cumulative frequency ogive follows. The percentage of sales transactions on Saturday that were between $100 and $150 was _____________.

The 2010 and 2012 market share data of the three competitors (Alston,Baren,and Clemson)in an oligopolistic industry are presented in the following pie charts. Which of the following is true?

A graphical representation of a frequency distribution is called a pie chart.

The following represent the ages of students in a class: 19,23,21,19,19,20,22,31,21,20 If a stem and leaf plot were to be developed from this,how many stems would there be?

The staffs of the accounting and the quality control departments rated their respective supervisor's leadership style as either (1)authoritarian or (2)participatory.Sixty-eight percent of the accounting staff rated their supervisor "authoritarian," and thirty-two percent rated him "participatory." Forty percent of the quality control staff rated their supervisor "authoritarian," and sixty percent rated her "participatory." The best graphic depiction of these data would be two ___________________.