Exam 22: Business Statistics

If all values are different, there is no mode.

Calculating one's grade point average is an example of using the median.

Calculate the standard deviation (to the nearest hundredth) for the following sample set of data (round mean to nearest hundredth): 82.5, 91.3, 57.4, 41.7, 76.9, 68.5

Find the mean (do not round): 38 + 18.05 + 25 + 26 + 46

Given the following sales of Roe Co., prepare a line graph (run sales to $50,000 in increments of $10,000):

Bar charts are nonvisual presentations of data.

Jim's Donut Shop reported the following sales for the first 20 days: Complete a frequency distribution.

The range of 105, 108, 117, 122, 129, and 129 is:

Alvin's Bakery produced the following number of oat bran muffins each week: In a frequency distribution, which would have the lowest tally?

A frequency distribution tries to avoid organizing numbers to show what patterns exist.

A consumer price index is an example of a price relative.

How many degrees on a pie chart would each be given from the following?

Intervals can be used with bar graphs.

Russell Co. reported sales of $400,000 in 2012. This compared to sales of $180,000 in 2011 and $100,000 in 2010. Construct a line graph for Russell Co.

Professor Bowdidge taught four business statistics classes during the fall semester with the following grade averages for each class. Calculate the mean (round to the nearest hundredth): 82%, 86%, 91%, and 74%

Paula's Printing Company produced the following number of bound books during the first five weeks of last year: Prepare a bar graph.

To avoid distortion of extreme values, a good indicator would be the:

Assume the mean useful life of a particular lightbulb is 2,000 hours and is normally distributed with a standard deviation of 300 hours. Calculate the useful life of lightbulbs within two standard deviations of the mean.

Calculate the weighted mean from the following sales: $400, $700, $300, $600, $300, $400, $700

Angie Corporation reported profits of 18%. It stated in the report that cost of sales was 42% with expenses of 40%. Prepare a circle graph for Angie.