STAT 220
Basic Statistics
Spring 2011
1
Homework 3
Instructions:
1. This homework is due at the beginning of section on Thursday April 21. No late
homework will be accepted. E-mail is not an acceptable form of submission.
2. You may work with other studen
STAT 220
Midterm
November 5, 2010
Name:_
Section:_
This is the Midterm for STAT 220. There are 5 questions for a total of 60 points. You have 50
minutes to work on this exam.
Exam rules:
1. You must keep the exam closed and are not allowed to write until
STAT 220
Midterm
April 30, 2010
Name:_
Section:_
This is the Midterm for STAT 220. There are 4 questions for a total of 53 points. You
have 50 minutes to work on this exam.
Exam rules:
1. You must keep the quiz closed and are not allowed to write until it
STAT 220
Midterm
July 21, 2010
Name:_
Section:_
This is the Midterm for STAT 220. There are 5 questions for a total of 50 points. You
have 60 minutes to work on this exam.
Exam rules:
1. You must keep the exam closed and are not allowed to write until it
Stat 220 quiz 2 Autumn 2010
Question 1(a) was well done. Answer:
3
5
3.
5
Question 1(b). The words at least strongly suggest that the complement rule may be useful. Answer:
1
3
5
2
4
1
3
.
Question 2 was a dicult question. A student getting one point for
Quiz 3
Stat 220 Thursday Dec. 2, 2010
Name:
Section (circle one): AA
AB AC AD AE AF
Problem 1
Suppose we roll a fair die 10,000 times and count the number of 3s that come up.
a) (1 point) The number of 3s rolled is like the sum of 10,000 draws made at ran
Quiz 1
STAT 220
Name:_
Section:_
This is a closed book quiz. You may use a calculator, although be sure to show your work.
Problem 1 (6 points)
We want to look at the relationship between aspirin and coronary heart disease. It is believed that
taking dose
STAT 220
Final Exam
August 19, 2010
Name:_
Section:_
This is the final exam for Stat220. There are 5 questions for a total of 50 points. You have
one hour, until 10:40 am to work on this exam.
Exam rules:
1. You must keep the exam closed and are not allow
Quiz 3
STAT 220
Name:_
Section:_
This is a closed book quiz. You may use a calculator, although be sure to show your work.
Problem 1 (15 points)
In Autumn quarter of 2009, the University of Washington had a total enrollment of 42,094
students. Of these st
Quiz 2
STAT 220
Name:_
Section:_
This is a closed book quiz. You may use a calculator, although be sure to show your work.
Problem 1 (10 points)
Suppose that this course is full with a total of 180 students and 30 students in each quiz section:
Section
#
Quiz 2 Name: KEY
STAT 220 Section:
This is a closed book quiz. You may use a calculator, although be sure to show your work.
Problem 1 (1] points)
The second round of this year’s World Cup for soccer consisted of 16 teams. The following is a
breakdown of
STAT 220
Midterm
November 5, 2010
Name:_
Section:_
This is the Midterm for STAT 220. There are 5 questions for a total of 50 points. You
have 50 minutes to work on this exam.
Exam rules:
1. You must keep the exam closed and are not allowed to write until
STAT 220
Final Exam
June 8, 2010
Name:_
Section:_
This is the Final exam for STAT 220. There are _ questions for a total of _ points. You
have until 10:20 am to work on this exam.
Exam rules:
1. You must keep the exam closed and are not allowed to write u
STAT 220
Final Exam
December 14, 2010
Name:_
Section:_
This is the Final exam for STAT 220. There are 6 questions for a total of 64 points. You
have until 10:20 am to work on this exam.
Exam rules:
1. You must keep the exam closed and are not allowed to w
STAT 220
Basic Statistics
Spring 2011
1
Homework 1
Instructions:
1. This homework is due at the beginning of section on Thursday April 7. No late
homework will be accepted. E-mail is not an acceptable form of submission.
2. You may work with other student
STAT 220
QUIZ 2
Name:
Basic Statistics
Section:
Spring 2011
This is a closed book quiz. You may use a calculator. Show all your work. Good luck!
1. Match each phrase on list A with one on list B.
List A
population
population average
sample
sample average
STAT 220
SAMPLE
Name:
Basic Statistics
QUIZ 1
Section:
Spring 2011
This is a closed book quiz. You may use a calculator. Show all your work. Good luck!
1. True or False
(5 pts.)
(a) Control in controlled experiment refers to the use of a control group.
(b
Practice Problems
April 25, 2011
1. In some jurisdictions, there are pre-trial conferences. In N.J. courts, these trials were
mandatory. An experiment was conducted to see if these pre-trial hearings can
promote settlements.
speed up trials.
During a 6-
Midterm
Stat 220
Basic Statistics
April 29 2011
Name:
Section:
On my honor, I have neither given nor received unauthorized aid on this
examination.
Signature:
Date:
Instructions: This is a closed book examination. You are allowed to bring one letter-sized
Midterm
Stat 220
Basic Statistics
April 29 2011
Name:
Section:
On my honor, I have neither given nor received unauthorized aid on this
examination.
Signature:
Date:
Instructions: This is a closed book examination. You are allowed to bring one letter-sized
Midterm
Stat 220
Basic Statistics
April 29, 2011
Name:
Section:
On my honor, I have neither given nor received unauthorized aid on this
examination.
Signature:
Date:
Instructions: This is a closed book examination. You are allowed to bring one letter-size
Stat 220
Basic Statistics
Win 2013
FINAL EXAMINATION
Name:
Section:
On my honor, I have neither given nor received unauthorized aid on this
examination.
Signature:
Date:
Instructions: This is a closed book examination. You are allowed to bring one letters
Quiz 4
STAT 220
Basic Statistics
Autumn 2011
Name:
Section:
This quiz is worth 25 points. There are three questions on four pages. Good
luck!
1. Suppose each time a coin is ipped, the probability of getting a heads is 2/3.
Does this mean that we will see
STAT 220, midterm review
In a large statistics class, the scores on the midterm and the nal were as follows:
Mean on midterm = 82, SD = 8
Mean on nal = 74, SD = 10
The correlation coecient is r = 0.80 and the scatter diagram is football shaped.
(a) Predic
Quiz 2
STAT 220
Name:_
Section:_
This is a closed book quiz. You may use a calculator, although be sure to show your work.
Problem 1 (11 points)
The second round of this years World Cup for soccer consisted of 16 teams. The following is a
breakdown of whi
Quiz 2
STAT 220
Name:_
Section:_
This is a closed book quiz. You may use a calculator, although be sure to show your work.
Problem 1 (12 points)
Students from many different departments take STAT 220 as a requirement or for their own
research needs. The f
1.
(Part A)
b. The elements of list 1 compare to list 2
by forming a linear relationship. But
assigning list 1 as the x values and list 2 as
the y values, these list form the equation
y=2x 5, with
Tressa Coultard
1438072
1a. The investigator took the populations of each state and number of crimes and divided the
the number of crimes by the population and multiplied it by 100.
1b. His conclusion is not
1. a. Individuals are the 175 countries. The variables are the education, economic growth,
HIV rates and child deaths between 1970 and 2009.
b. The variables that are the primary focus are number of years of
1. There appears to be two outliers, at 0 and 220. These points are separated from the rest
of the data, but only the outlier 0 should be discarded. This point most likely represents
people who have never driven a