Math 362, Problem set 1
Due 1/31/10
1. (4.1.8) Determine the mean and variance of the mean X of a random
sample of size 9 from a distribution having pdf f (x) = 4x3 , 0 < x < 1,
zero elsewhere.
Answer:
We have that:
E[X] = E[
1
n
1
nE[Xi ] = E[Xi ]
n
Xi
Practice Midterm Exam II
Math 362
2/25/10
Name:
Read all of the following information before starting the exam:
READ EACH OF THE PROBLEMS OF THE EXAM CAREFULLY!
Show all work, clearly and in order, if you want to get full credit. I reserve the right to
Practice Midterm Exam I
Math 362
Name:
2/25/10
Read all of the following information before starting the exam:
READ EACH OF THE PROBLEMS OF THE EXAM CAREFULLY!
Show all work, clearly and in order, if you want to get full credit. I reserve the right to
t
Practice Midterm Exam I
Math 362
Name:
2/25/10
Read all of the following information before starting the exam:
READ EACH OF THE PROBLEMS OF THE EXAM CAREFULLY!
Show all work, clearly and in order, if you want to get full credit. I reserve the right to
t
Practice Final
Math 362
Name:
2/25/10
Read all of the following information before starting the exam:
READ EACH OF THE PROBLEMS OF THE EXAM CAREFULLY!
Show all work, clearly and in order, if you want to get full credit. I reserve the right to
take o poi
Practice Midterm Exam I
Math 362 Name:
2/25/10
Read all of the following information before starting the exam:
0 READ EACH OF THE PROBLEMS OF THE EXAM CAREFULLY!
0 Show all work, clearly and in order7 if you want to get full credit. I reserve the right to
Final Exam
Math 362
9/27/10
Name:
Read all of the following information before starting the exam:
READ EACH OF THE PROBLEMS OF THE EXAM CAREFULLY!
Show all work, clearly and in order, if you want to get full credit. I reserve the right to
take o points