List of Ob jectives and Required Knowledge, Part I
By the rst mid-term exam, you should know the following concepts and be able to do the following
types of problems:
1. Given a set of sample data, develop its frequency distribution and graph the data in
Sample Final Exam for Stat. 224.
Prof. Callan
1. a) Suppose A,B,C are independent events with probabilities
P(A) = .6, P(B) = .4, P(C) = .3.
Find
(i) P(A B)
(ii) P(A B)
(iii) P(A|B)
(iv) P(exactly one of A,B,C occurs)
b) True(T) or False(F)? [Circle one]
Sample Test 2 for Stat. 224
1.
a) Using the following 10 random digit pairs, simulate 10 values
of the discrete random variable X with probability density
function
X=
0
1
2
3
prob. =
.12
.12
.60
.16
Random Digits
16
87
16
55
49
60
14
19
92
52
How many 2's
STAT 224-3
Discussion # 05/07/07
TA: Quoc, Tran
Simple Linear Regression Model
Simple Linear Regression Model
yi = + xi + i , i = 1, 2, n
where i are noise terms which are distributed as N (0, 2 ).
Note that yi N ( + xi , 2 ).
Three important sum square
Stat 224, Handout 11
TA: Shubing Wang, Dec 7, 2005
Summary of Hypothesis Test
1. Denition. Null hypothesis, H0 : some statement; Alternative hypothesis Ha : another statement.
2. Test Statistic. A function of the sample data which is used to make decision
Topics List for Stat 224/324 Exam 2, Spring 2007
Normal approximation to Binomial when its applicable and how to use it to
your advantage
Finding E and VAR of linear combinations of independent RVs
o Special fact that a linear combination of normal RVs is