Running Head: GRADUATE SCHOOL
1
We can compare the 3 given people here only when their performance is on same scale but here
Thuy G.P.A is 2.7/ 4
Vichet G P A is 87/ 100
Kamala G P A is 8.6/ 10.
First we need to convert the data (GPA, its mean and standar
Running Head: SWIM TEAM
1
A community swim team has 150 members. Seventy-five of the members are advanced
swimmers. Forty-seven of the members are intermediate swimmers. The remainder are novice
swimmers.
Forty of the advanced swimmers practice four times
The following table shows a random sample of 100 hikers and the areas of hiking preferred:
Hiking Area Preference
Gender
The Coastline Near Lakes and Streams On Mountain Peaks
Total
Female
18
16
11
45
Male
16
25
14
55
Total
34
41
25
100
Problem 1:
Complet
Running Head: LET'S PLAY SOCCER
1
Carlos plays college soccer. He makes a goal 65% of the time he shoots. Carlos is going to
attempt two goals in a row in the next game.
A = the event Carlos is successful on his first attempt. P(A) = 0:65. B = the event C
Suppose a study of speeding violations and drivers who use car phones produced the following
fictional data:
Speeding Violation in No speeding violation
the last year
in the last year
Total
Car Phone User
25
280
305
Not a Car Phone User
45
405
450
Total
7
Running Head: POISSON
1
Your math instructor expects you to complete two pages of written math
homework every day. What is the probability that you complete more than
two pages a day?
This is a Poisson problem because your instructor is interested in know
Running Head: BINOMIAL DISTRIBUTION
1
Approximately 70% of statistics students do their homework in time for it to be collected and
graded. In a statistics class of 50 students, what is the probability that at least 40 will do their
homework on time?
Prob
Running Head: NORMAL DISTRIBUTION
1
IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one
individual is randomly chosen. Let X =IQ of an individual.
a.X ~N (100,15)
b. Find the probability that the person has an IQ grea
Running Head: LEAST SQUARES
1
Least Squares
Below is the life expectancy for an individual born in the United States in certain years. (Source:
National Center for Health Statistics)
Year of Birth
Life Expectancy
1930
1940
1950
1965
1973
1982
1987
1992
59
Decision Tree Analysis
Purchase Behavior for Big-Screen Televisions
Planned To
Purchase
Yes
No
Total
Actually Purchased
Yes No
Total
200 50
250
100 650
750
300 700
1000
In the above table, households are classified according to whether they planned to pur
Linear Regression and Correlation
In 1990 the number of driver deaths per 100,000 for the different age groups was as follows
(Source: The National Highway Traffic Safety Administration's National Center for Statistics and
Analysis):
Age
Number of Driver
Week 2 Assignment 1: Speeding Violations
Suppose a study of speeding violations and drivers who use car phones produced the following
fictional data:
Speeding Violation in No speeding violation
the last year
in the last year
Total
Car Phone User
25
280
30
Week 3 Assignment 1: Normal Distribution
IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one
individual is randomly chosen. Let X =IQ of an individual.
a. X ~ N(_100_,_15_)
b. Find the probability that the person has
Week 3 Assignment 2: Poisson
Your math instructor expects you to complete two pages of written math
homework every day. What is the probability that you complete more than
two pages a day?
This is a Poisson problem because your instructor is interested in