Exam 2: Descriptive Statistics: Tabular and Graphical Methods

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

Which of the following graphs is for qualitative data?

All of the following are used to describe qualitative data except the:

Consider the following data on distances traveled by people to visit the local amusement park. Construct an Ogive plot that corresponds to the frequency table.

Consider the following data on distances traveled by people to visit the local amusement park and calculate the relative frequency for the distances over 24 miles.

When we wish to summarize the proportion (or fraction)of items in a class we use the frequency distribution for each class.

822 customers were randomly selected from those who had recently bought a book over the internet.The chart below shows the breakdown of the classification of the book type: What percentage of the books purchased were either mystery or science fiction/fantasy?

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 Complete this frequency table for these data

The relative frequency is the frequency of a class divided by the total number of measurements.

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 a stem-and-leaf plot.