Study Guides
(238,597)

Canada
(115,230)

Ryerson University
(8,000)

Quantitative Methods
(168)

QMS 102
(88)

Midterm

# ReviewQuestionsQMS102(Fall2012Test1)Set1.doc

Unlock Document

Ryerson University

Quantitative Methods

QMS 102

Jason Chin- Tiong Chan

Fall

Description

QMS102-Business Statistics I Review Questions
Quiz Review
1.Which one of the following statistics is NOT an example of discrete data?
A. Households watching Canadian Idol.
B. Employees reporting in sick.
C. Distance traveled between Toronto and Ottawa.
D. Members of the York Region Lions Club.
E. Family members.
F. None of the above
2. Which of the following is an example of continuous data?
A. Family income
B. Number of students in a statistics class
C. Postal codes of shoppers
D. Rankings of baseball teams in a league
E. None of the above
3.The members of each basketball team wear numbers on the back of their
jerseys. What scale of measurement are these numbers considered?
A. Nominal B. Ordinal C. Ratio-discrete D.Interval
E. Ratio-continuous F. None of the above
4.What level of measurement are the Centigrade and Fahrenheit temperature
scales?
A. Nominal B. Ordinal C. Ratio-discrete D.Interval
E. Ratio-continuous F. None of the above
5.What level of measurement is a bar code?
A. Nominal B. Ordinal C. Ratio-discrete D.Interval
E. Ratio-continuous F. None of the above
6.Which of the following three statements are true?
I Statistics is defined as a body of techniques used to facilitate the
collection, organization, presentation, analysis and interpretation of
information for the purpose of making better decisions.
II The order that runners finish in a race would be an example of continuous
data.
III If we select 100 persons out of 25,000 registered voters and question
them about candidates and issues, the 100 persons are referred to as the
sample.
Fall2012 Page#1 QMS102-Business Statistics I Review Questions
A. I, II and III B. I and II C. I and III D. II and III
E. All statements are false.
7. What is the following table called?
Ages Number of customers
20 and under 30 24
30 and under 40 67
40 and under 50 15
50 and under 60 27
60 and under 70 11
70 and under 80 3
A.Histogram B. Polygon C. Cumulative frequency distribution
D.Frequency distribution E. None of the above
8. Consider the following relative frequency distribution:
Class Interval Relative Frequency
0 and under 10 0.21
10 and under 20 0.33
20 and under 30 0.42
30 and under 40 0.04
If there are 3000 numbers in the data set, how many of the values
are at least
20?
A. 1380 B. 1620 C. 2250 D. 1260 E. None of the above
9.The head of the statistics department wants to determine the number of
mistake made by students in their first online assignment. She gathers
information from her classes of the past year.
Errors Per Assignment Number of Students
0 and under 2 140
2 and under 4 150
4 and under 6 130
6 and under 8 110
8 and under 10 120
Fall2012 Page2 QMS102-Business Statistics I Review Questions
How many students made at least 4 errors?
A. 280 B. 130 C. 360 D. 230 E. 140 F. None of the above
Question 10 and 11
The grades on a statistics exam for a sample of students are as follows:
Stem(tens) Leaf
3 68
4 1278
5 156789
6 1224578889
7 1156799
8 1246
9 14
10. How many students wrote this test?
A.36 B. 35 C.38 D.7 E. 43
11. If A+ = 90%-100% , A = 80%-89% , B+ = 75%-79% , B = 70%-74%,
C+ = 65%-69% , C = 60%-64% , D = 55%-59% , F = 0%-54%
What is the most common letter grade earned?
A. A+ B. A C. B+ D. B E. C+ F.C H. D I. F
12.The collection of all possible individuals, objects, or measurements is called
A. a sample B. population C. an inference D. data
13.Techniques used to determine something about a population, based on a
sample, are called
A. descriptive statisticsB. inferential statistics C. Sample D. population
14. Jeffrey works for a computer company. His job is to make sure that people
in their target market, all individuals between the ages of 18 and 54, like
their commercials. To test one commercial, he interviews 50 people who
are between the ages of 18 and 54, live in Toronto and asks them
what they like and dislike about the commercial. What is his sample
and his population?
A. individuals between the ages of 18 and 54 , 50 people who are
between the ages of 18 and 54 and live in Toronto
B. all individuals, individuals between the ages of 18 and 54
Fall2012 Page3 QMS102-Business Statistics I Review Questions
C. 50 people who are between the ages of 18 and 54 and live in Toronto
, individuals between the ages of 18 and 54
D. all individuals , 50 people who are between the ages of 18 and 54
who live in Toronto
E. individuals between the ages of 18 and 54 , 50 people who live in
Toronto
15. The Equal Employment Opportunity Act requires employers to classify their
employees by gender and national origin. Which level of measurement is
this?
A. Nominal B. Ordinal C. Interval D. Ratio-discrete
E. Ratio-continuous
16. The following question was asked in a survey conducted by a Third Cup
Coffee Store. The possible responses for the question are given.
How many cups of coffee do you buy per day?
What is the measurement scale of the response data?
A. Nominal B. Ordinal C. Ratio-discrete D. Interval-discrete
E.Ratio-continuous
17. The following question was asked in a survey conducted by a Third Cup
Coffee Store. The possible responses for the question are given.
What brand of coffee do you buy most? (Please tick one)
__ Tim Horton’s ____ Starbuck ____ Second Cup ___ others
What is the measurement scale of the response data?
A. Nominal B. Ordinal C. Ratio-discrete D. Interval
E. Ratio-continuous
Fall2012 Page#4 QMS102-Business Statistics I Review Questions
18. Refer to the following chart showing a distribution of exporting firms:
Exports ($ millions) Number of Firms (percent)
$0 and under $5 6%
$5 and under $10 23%
$10 and under $15 20%
$15 and under $20 37%
$20 and under $25 14%
If there are 400 exporting firms in the data set, how many exporting firms
exported at least $15 million?
A. 204 B. 196 C. 228 D. 148

More
Less
Related notes for QMS 102