MATH 302 Quiz 1 - Question and Answers

MATH 302 Quiz 1 - Question and Answers What is the term for a characteristic or attribute that can assume different values? A.datum B.exponent Correct C.variable D.sample Answer Key: C Question 2 of 20 1.0/ 1.0 Points A pareto chart does NOT have which of the following properties? A.It is used to represent categorical data B.The frequencies are arranged from highest to lowest Correct C.The frequencies are arranged from lowest to highest D.It is a bar chart Answer Key: C Question 3 of 20 1.0/ 1.0 Points Suppose that a histogram of a data set is approximately symmetric and "bell shaped". Approximately what percent of the observations are within two standard deviations of the mean? A.50% Correct B.95% C.68% D.99.7% Answer Key: B Question 4 of 20 1.0/ 1.0 Points Suppose that a histogram of a data set is approximately symmetric and "bell shaped". Approximately, what percent of the observations are within three standard deviations of the mean? A.68% B.95% Correct C.99.7% D.50% Answer Key: C Question 5 of 20 1.0/ 1.0 Points The amount of time needed to run the Boston marathon is an example of which type of variable? Correct A.continuous B.none of the above C.qualitative D.discrete Answer Key: A Question 6 of 20 1.0/ 1.0 Points Gender and State are examples of which type of data? A.Discrete data B.Continuous data C.Ordinal data Correct D.Categorical dat