Exam 2: Charts and Graphs

Suppose a market survey of 200 consumers was conducted to determine the likelihood of each consumer purchasing a new computer next year.Data were collected based on the age of the consumer and are shown below: Using the table above, which of the following statements is true about the surveyed consumers?

Consider the following frequency distribution: Class Interval Frequency 10-under 20 15 20-under 30 25 30-under 40 10 What is the midpoint of the first class?

To show differences between different series during the same time periods, different trend lines, each in a different color, and all using the same x axis for graphing.

The following class intervals for a frequency distribution were developed to provide information regarding the starting salaries for students graduating from a particular school: Salary Number of Graduates ($1,000s) 18-under 21 - 21-under 25 - 24-under 27 - 29-under 30 - Before data was collected, someone questioned the validity of this arrangement.Which of the following represents a problem with this set of intervals?

In contrast to quantitative data graphs that are plotted along a numerical scale, qualitative graphs are plotted using non-numerical categories.

The following time-series data shows the average number of vacation days taken each year by employees. 2010 22 2011 25 2012 26 2013 29 2014 24 2015 21 2016 22 2017 20 2018 19 Which of the following would be indicated if these data were shown through a visualization of these data?

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 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 between 1 and 6 minutes was ___.

Each day, the office staff at Oasis Quick 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 between $100 and $150 was ___.

A scatter plot is a two-dimensional graph plot of data containing pairs of observations on two numerical variables.

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 ___.

Consider the following frequency distribution: Class Interval Frequency 100-under 200 25 200-under 300 45 300-under 400 30 What is the midpoint of the last class interval?

A shirt production company has tracked their production and expenses since the company started in 1999.The graph of both is shown. When comparing production and expenses during these years, what conclusion is not true?

Consider the following frequency distribution: Class Interval Frequency 100-under 200 25 200-under 300 45 300-under 400 30 What is the cumulative frequency of the second class interval?

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 more than 6 minutes was ___.

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

A histogram can be described as a type of vertical bar chart.

The staff of Ms.Tamara Hill, VP of Technical Analysis at Blue Sky Brokerage, prepared a frequency histogram of market capitalization of the 937 corporations listed on the American Stock Exchange in January 2003. Approximately ___ corporations had capitalization exceeding $200,000,000.

The following graphic of residential housing data (selling price and size in square feet)is a ___.

A scatter plot is useful for examining the relationship between two numerical variables.