Tutorial Sessions (Week 37)
1. An experiment consists of selecting a student body president and vice president. All
undergraduate students (freshmen through seniors) are eligible for these offices. How
many sample points (possible outcomes as to the class
HW 1
2 marks for each question. The bonus question worths 4 points. The max of the score is 20.
Due date Oct 22 2016 10:00am.
1. A fair coin is tossed. If a head turns up, a fair die is tossed; if a tail turns up, two fair dice are
tossed. What is the pro
Math Review
Summation Notation We are often interested innthe sum of several terms and in such
cases a compact notation is very useful. The symbol 2 3' for 1 S n denotes the sum of the
jzl
terms 0:1, 0:21 , an. Or equivalently,
'n.
Zaj=a1+a2+-+an
jzl
4
0
ECO 2121 Basic Statistics
Problem Set for Week 3
1. A coin is tossed four times and the resulting sequence of heads and/or tails is recorded. Define
the events A, B and C as follows:
A: exactly two heads appear
B: heads and tails alternate
C: first two to
Multiple Regression Analysis: Further Issues
1. Data Scaling
2. Functional Form - Logarithmic/Quadratic/Interaction
terms
(Nonlinear functions of x and y,
but still linear in the parameters)
3. Goodness-of-Fit (R-squared)
4. Prediction and Residual Analys
Multiple Regression Analysis
y = 0 + 1x1 + 2x2 + . . . kxk + u
-allows us to explicitly control for many other
factors, and so allows ceteris paribus analysis
- allows to generalize functional relationship
ceteris paribus
y = 0 + 1x1 + 2x2 + . . . kxk +