Solution #3 (24 points)
Mat 1371
Mayer Alvo
20. Singers.
a) (5 points ) Five-number summary: 60, 65, 66, 70, 76, so the median is 66 inches and the IQR
is 70 65 = 5 inches.
b) The mean height of the singers is 67.12 inches, and the standard deviation of t
Math 1371
Solution #1 (21 points)
Chapter 2
#12 (3 points) To vote or not to vote. Who Sample of 1000 adult Canadians.
What - Gender, province, party preference, age group, opinion on timing of the
next federal
election.
When January 2008.
Where Responden
Solution #5 (23 points)
Mat 1371
Mayer Alvo
Chapter 9
21. [ 4 points] Interest rates.
a) r = 0.88 . The correlation between rate and year is +0.88, since the scatterplot shows a
positive association.
b) According to the model, interest rates during this p
Solution #4 (17 points)
Mat 1371
Mayer Alvo
Chapter 7
6. (5 points) Scatterplots.
a) #1 shows little or no association.
b) #4 shows a negative association.
c) #2 and #4 each show a straight association.
d) #3 shows a moderately strong, curved association.
Solution #6 (23 points)
Mat 1371
Mayer Alvo
Chapter 11
17. Cereal. Answers will vary. A component is the simulation of the picture in one box of cereal.
One possible way to model this component is to generate random digits 0- 9. Let 0 and 1
represent Sidn
MAT 1371
Final Exam
Duration: 3 hours
Student Number:
Name:
This is a closed book examination. However two sheets (doublesided) are permitted.
Only non-programmable and non-graphic calculators are permitted.
The exam will be marked on a total of 50 poi
MATH 1371
Midterm
Duration: 80 minutes
Student Number:
Last Name:
First Name:
This is a closed book examination. However one sheet is permitted.
Only non-programmable and non-graphic calculators are permitted.
The exam will be marked on a total of 30 p
MAT 1371 (Fall 2007) Descriptive Statistics
Final Examination Solutions
Duration: 180 minutes
Marks:
Q1 Q2 Q3 Q4 Q5 Q6 Total
7 10 8
8
7 10
50
1
1. I dont doubt the steak was over-cooked, but did you have to eat it all before
you complained about it?
There
Solution #2 (27 points)
Mat 1371
Mayer Alvo
Chapter 4 #13, 21, 24, 32, 40
13. Summaries.
a) (1 points) The mean price of the electric smooth top ranges is $1001.50.
b) (2 points)In order to find the median and the quartiles, the list must be ordered.
565
Solution #7 (20 points)
Mat 1371
Mayer Alvo
Chapter 14
18. Census returns.[4 points] Let S = randomly selected person receives a short census, L =
randomly selected person receives a long census and O = randomly selected person
completes online. We are gi