MATH 302 Quiz 1 - Question
and Answers
Question 1 of 20 1.0/ 1.0 Points
What is the term for a characteristic or attribute that can assume
... [Show More] 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 data
Answer Key: D
Question 7 of 20 1.0/ 1.0 Points
The average score for a class of 30 students was 75. The 20 male
students in the class averaged 70. The 10 female students in the class
averaged:
A.70
B.75
C.60
Correct D.85
Answer Key: D
Question 8 of 20 1.0/ 1.0 Points
Data that arise from counts are called:
A.continuous data
B.nominal data
C.counted data
Correct D.discrete data
Answer Key: D
Question 9 of 20 1.0/ 1.0 Points
Researchers may gain insight into the characteristics of a population by
examining a
A.mathematical model describing the population
B.description of the population
C.replica
Correct D.sample of the populatio [Show Less]