MATH 4753-001 Homework 9
Due date: April 23, 2014
This homework set covers Chapter 8.
Problem 1: A manufacturer of power meters, which are used to regulate energy thresholds
of a data-communications system, claims that when its production process is opera
MATH 4753-001 Homework 7 with Solutions
Due date: April 7, 2015
This homework set covers Sections 6.3,6.4,6.7,6.96.11; 7.17.4
Problem 1: The joint density function for the random variables (X, Y ), where X is the
unit temperature change and Y is the propo
MATH 4753-001 Homework 8
Due date: April 14, 2014
This homework set covers Sections 7.57.11.
Problem 1: A random sample of size n1 = 35, taken from a normal population with a
standard deviation 1 = 3, has mean x1 = 80. A second random sample of size n2 =
MATH 4753-001 Homework 5
Due date: March 5, 2015
This homework set covers Sections 5.15.5.
Problem 1: Let X be a random variable with probability density function
c(1 x2 ), 1 < x < 1,
0,
otherwise.
f (x) =
(a) Find the value for c.
(b) What is the cumulat
MATH 4753-001 Homework 4
Due date: February 24, 2015
This homework set covers Sections 4.44.10.
Problem 1: Let X be a random variable with the following probability distribution:
x
-3
6
9
p(x) 1/6 1/2 1/3
and let g(x) = (2x + 1)2 .
(a) Find the expected v
MATH 4753-001 Homework 6
Due date: March 12, 2015
This homework set covers Sections 5.56.2.
Problem 1: Let X be normally distributed with parameters (, 2 ) = (30, 36). Find
(a) the normal curve area to the right of x = 17;
(b) the normal curve area to the
MATH 4753-001 Exam 2
April 2, 2015.
ON THE FRONT OF YOUR EXAM write: (1) your name and (2) your instructors name.
Textbooks and class notes are NOT permitted and all phones and electronics must be turned
o and stowed away. Finally, make sure to show all y
MATH 4753-001 Homework 2
Due date: January 29, 2015
This homework set covers Sections 3.13.7.
Problem 1: Consider the experiment of tossing three fair coins and provide a sample space
S containing all simple events for this experiment.
Solution: S = cfw_H
MATH 4753-001 Homework 3
Due date: February 10, 2015
This homework set covers Sections 3.74.4.
Problem 1:
Suppose that ten coins are ipped such that if the kth coin is ipped, the probability of
heads appearing is k/10. Now, suppose that a coin is randomly
2.1
Degrees Awarded Over Time
50000
45000
40000
35000
30000
25000
20000
15000
10000
5000
0
1999
2000
2001
# of PhD Degrees
2002
Doctorial Enrollment (full time)
2.2
Chart Title
29%
30%
9%
32%
Yes. My job is a close match.
No. It's engineering. But not wha
2.1 Year
# of PhD Degrees
2.2 Yes. My job is a close match.
Doctorial Enrollment (full time)
2.11 Location
29
1999
5945
31536
No. It's engineering. But not what I studied.
32
Bethel
2000
5990
33312
Job is not engineering related.
2001
6085
35425
Currently
MATH 4753-001 Homework 8
Due date: April 14, 2014
This homework set covers Sections 7.57.11.
Problem 1: A random sample of size n1 = 35, taken from a normal population with a
standard deviation 1 = 3, has mean x1 = 80. A second random sample of size n2 =
MATH 4753-001 Homework 7
Due date: April 7, 2015
This homework set covers Sections 6.3,6.4,6.7,6.96.11; 7.17.4
Problem 1: The joint density function for the random variables (X, Y ), where X is the
unit temperature change and Y is the proportion of spectr