MATH 302 QUIZ 1 –MATH302 Quiz 1(GRADED A) QUESTION AND ANSWERS SET 3

Question 1 of 20 1.0/ 1.0 Points 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