Solution #1 (21 points)
Mat 1371
Mayer Alvo
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.
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Chapter 11, Simple linear regression and
correlation. Let observations be paired in the
sense that an (x, y) pair arise from the same
sampling unit. For n sampling units, we can
write the measurement pairs as
(x1, y1), (x2, y2), . . . , (xn, yn).
A major
Denition: A random variable X is continuous if its c.d.f. FX is a continuous function.
Denition: A probability density function (p.d.f.)
f of a continuous random variable X is the
derivative of the distribution function F (when
it exists):
f (x) =
(
d F (
MAT 1371
Midterm
Professor G. Lamothe
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 marke
MAT1371 lecture2
1.frequency table records the totals and the category names
2.A relative frequency table displays the proportions or percentages rather than the counts of the
values in each category.
E.g.
Class
count
percentages
First
325
325/2201*0.01
S