Exam 2: Organizing and Visualizing Data

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 ___.

Pinky Bauer, Chief Financial Officer of Harrison Haulers, Inc., suspects irregularities in the payroll system and orders an inspection of "each and every payroll voucher issued since January 1, 2000." Each payroll voucher was inspected and the following frequency distribution was compiled. The midpoint of the first class interval is ___.

A person has decided to construct a frequency distribution for a set of data containing 60 numbers. The lowest number is 23 and the highest number is 68. If 7 classes are used, the class width should be approximately ___.

Your company is doing market research to assess the feasibility of a new product. The market research team gathers pricing information of all the existing products that would compete with your company's product. The most expensive brand is priced at $22.95, and the least expensive one at $20.59. If a class width of 0.25 is used, then the class mark of the first class interval will be

Consider a scatterplot showing the relationship between years of formal education and life expectancy. Which of the following statements is false?

The United Nations Development Programme website provides comparative data by country on key metrics, such metrics as life expectancy over time. The chart below shows data on life expectancy over time in the United States. Which of the following statements are not true based on the scatterplot of U.S. Life Expectancy over time?

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 at least 7 minutes.

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 under $100 each was ___.

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

A cumulative frequency distribution provides a running total of the frequencies in the classes.

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 2013. Approximately ___ corporations had capitalizations of $200,000,000 or less.

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

An instructor made a frequency table of the scores his students got on a test: Approximately what percent of students got more than 70?

The table below shows the number of students registered in Accounting 101, Finance 101, Marketing 101 and Statistics 101. What percent of the students is registered in Statistics 101?

Consider the following frequency distribution: What is the cumulative frequency of the second class interval?

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 2016. Approximately ___% of corporations had capitalization not exceeding $200,000,000.

The following class intervals for a frequency distribution were developed to provide information regarding the starting salaries for students graduating from a particular school: 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, categorical graphs are plotted using non-numerical categories.

There are four majors in the School of Business at your local university, Accounting, Finance, Marketing and Management. 240 students are in Accounting major, 160 in Finance major, 80 in marketing major and 320 are in Management major. Develop a relative frequency table for the 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 ___.