Exam 2: Descriptive Statistics: Tabular and Graphical Methods

A local electronics retailer recently conducted a study on purchasers of large screen televisions.The study recorded the type of television and the credit account balance of the customer at the time of purchase.They obtained the following results. Construct a table of row percentages.

The percentage of measurements in a class is called the ___________ of that class.

A relative frequency curve having a long tail to the right is said to be ___________.

Using the following data,what would be the leaf unit in a stem-and-leaf display?

The number of items rejected daily by a manufacturer because of defects for the last 30 days are: 20,21,8,17,22,19,18,19,14,17,11,6,21,25,4,19,9,12,16,16,10,28,24,6,21,20,25,5,17,8 How many classes should be used in constructing a histogram?

Math test anxiety can be found throughout the general population.A study of 116 seniors at a local high school was conducted.The following table was produced from the data.Complete the missing parts.

The following is a relative frequency distribution of grades in an introductory statistics course. If this was the distribution of 200 students,give the frequency distribution for this data.

A runs plot is a form of scatter plot.

The number of weekly sales calls by a sample of 25 pharmaceutical salespersons is below. 24,56,43,35,37,27,29,44,34,28,33,28,46,31,38,41,48,38,27,29,37,33,31,40,50 Construct an ogive plot.

A local electronics retailer recently conducted a study on purchasers of large screen televisions.The study recorded the type of television and the credit account balance of the customer at the time of purchase.They obtained the following results. What percentage of purchases were plasma televisions by customers with the smallest credit balances?

Row or column percentages can be found in

The general term for a graphical display of categorical data made up of vertical or horizontal bars is called a(n)___________.

Recently an advertising company called 200 people and asked them to identify the company that was in an ad running nationwide.The following results were obtained. What percentage of those surveyed could not correctly recall the company?

The number of items rejected daily by a manufacturer because of defects for the last 30 days are: 20,21,8,17,22,19,18,19,14,17,11,6,21,25,4,19,9,12,16,16,10,28,24,6,21,20,25,5,17,8 Construct an ogive plot.

A stem-and-leaf display is a graphical portrayal of a data set that shows the overall pattern of variation in the data set.

Which one of the following graphical tools is used with quantitative data?

Recently an advertising company called 200 people and asked them to identify the company that was in an ad running nationwide.They obtained the following results. Construct a table of column percentages.

The number of weekly sales calls by a sample of 25 pharmaceutical salespersons is below. 24,56,43,35,37,27,29,44,34,28,33,28,46,31,38,41,48,38,27,29,37,33,31,40,50 What is the shape of the distribution of the data?

A histogram that tails out toward larger values is ___________.

Using the following data,describe the shape of the data distribution.