Exam 3: Data Analysis and Sampling Techniques

The rule of thumb for creating a frequency distribution is to divide the data into 5-15 classes. While larger numbers of classes allow for larger data sets, how do you know exactly how many classes to use

People who are available, volunteer, or can be easily recruited are used in the sampling method called ______

For the list of values, 13, 18, 13, 14, 13, 16, 14, 21, 13, the mean, median, mode, and range are in the order

Arrange the numbers in numerical order and see which is repeated most often. This describes which measure of central tendency

Which of the following measures become larger as the data is more dispersed

The movie theater industry tracks ticket sales by age groups. A _______would provide an appropriate representation for the proportion of ticket sales attributed to each age group.

A _______ would be an effective tool to assess the relationship between the grade earned in a class and the number of hours spent studying

The highest bar in a histogram represents

In which of the following nonrandom sampling techniques does the researcher ask the research participants to identify other potential research participants

Which of the following measures of central tendency is not affected by extreme values in the sample data set

How might an extreme value in the sample data set affect the value of the mean

How many elements of a data set are between the first and third quartiles

You are constructing a histogram that is required to use 6 classes for a data set that ranges from 15 to 70. A class width of ____ units would be an appropriate choice

When constructing a frequency distribution, which of the following rules must be followed?

How is the arithmetic mean related to the variance

Which of the following sampling techniques will not result in a probability sample?

Considering the various types of tables and charts you have studied, which table, chart, diagram or plot would you use to depict categorical data for two variables in a visual format