Math 214
Fall 2011
Exam 1
Instructions: This exam consists of seven questions, found on the front and back of this page. Answer all
questions on the answer sheets provided. Clearly label each question with its problem number. Box or circle
your answers. C
Math 214
Fall 2011
Exam 2
Instructions: This exam consists of seven questions, found on the front and back of this page. Answer all
questions on the answer sheets provided. Clearly label each question with its problem number. Box or circle
your answers. C
Math 214
Final Exam
Fall 2011
Instructions: This exam consists of nine questions, found on three pages. Answer each question on the indicated
answer sheet. Calculators are allowed, but you must show work for full credit. No other aids are allowed. Box
or
Math 214
Exam 1
Spring 2012
Instructions: This exam consists of six questions, found on the front and back of this page. Answer each
question on the indicated answer sheet. Calculators are allowed, but you must show work for full credit. No
other aids are
Math 214
Exam 2
Spring 2012
Instructions: This exam consists of eight questions, found on the front and back of this page. Solve each
problem on the indicated answer sheet. Round decimal answers to three decimal places where necessary, or
leave answers as
Math 214
Final Exam
Spring 2012
Instructions: This exam consists of nine questions, found on three pages. Answer each question on the answer
sheet indicated for that question. Clearly label each problem with its question number. Calculators are allowed
bu
Math 214 ~ Fall 2009 ~ Final Exam
Instructions: This exam consists of thirteen questions, found on two pages (front and back). Answer each
question on the indicated answer sheet. Calculators are allowed but you should show work where necessary.
Answer que
Name _ Score _ Math 214; Exam 2; 11/10/08
Instructions: This exam consists of ten questions on three pages. Other than #5 (which should be answered on the test
itself), each question is to be answered on the answer sheets provided. Clearly label each answ
Math 214 Final Exam Fall 2008 Answer Key
1)
Here is one possible histogram:
5
Frequency
4
3
2
1
0
5
8
11
14
17
20
23
26
29
Num be r of finche s
This distribution appears unimodal. Its not particularly symmetric; if anything, it is slightly skewed to the r
Math 214 Fall 2008 Exam 2 Answer Key
1a)
3.7 4.4 70 59 = .78 ; For a 70-cm finch, z = = .85 0.9 13 A 70-cm finch would be more unusual since its z-score is further from 0 (or, has a higher magnitude).
For a 3.7-kg finch, z = 47.5% (half of 95%) 5.5 4.4 z=
Math 214 Fall 2009 Exam 2 Answer Key
1) The maple tree is in general the thickest. Maples had the highest median thickness. Half of the maple trees
were thicker than 3/4 of the cedar trees. Half of the maple trees were thicker than more than half of the p
Math 214
Fall 2009
Exam 1 Answer Key
1) a) quantitative; ratio
b) categorical; ordinal
c) categorical; ordinal (also accepted nominal)
2) a) Any two numbers whose sum is more than 26, where one of them is less than 11 and the other is greater
than 11
b) A
Math 214 Fall 2008 Exam 1 Solutions
1) a) quantitative; interval
2) a) 17/142 = 11.9%
b) quantitative; ratio
b) 52/77 = 67.5%
c) categorical; ordinal
c) 3/17 = 17.6%
3) a) 46
b) Using the leveling off idea, you can imagine that the push-ups done by each s
Name _ Score _ Math 214; Exam 1; 10/13/08
Instructions: This exam consists of eight questions, found on front and back of this page. Other than the graphs in #8
(which should be drawn on the test page itself), each question is to be answered on the answer
Math 214
Fall 2009
Exam 2
11/24/09
Instructions: This exam consists of 8 questions, found on the front and back of this page. Answer all questions
on the answer sheets provided. Clearly label each answer with its problem number. Calculators are allowed.
1
Math 214
Fall 2011
Exam 1
Instructions: This exam consists of seven questions, found on the front and back of this page. Answer all
questions on the answer sheets provided. Clearly label each question with its problem number. Box or circle
your answers. C
Math 214
Exam 1
Spring 2007
ANSWER KEY
1. Determine whether each of the given statements is sensible and explain why it is or not.
a) [6] Alfred is running for class president. He asks every student in the class whether or not they are
planning to vote fo
Math 214
Exam 2
Spring 2007
ANSWER KEY
1. Each of the following statements applies to the data distribution
pictured to the right. Determine whether the given statement is sensible
and explain why it is or is not.
1a) [6] Marfenstra concludes that the hig
Math 214 Spring 2011 Exam 1 Answer Key
1) a) quantitative; ratio
b) categorical; nominal
c) quantitative; ratio
2) Even though we dont know the exact sales numbers for each month, we can proceed as if she sold 13 ads in
each of the previous five months. W
Math 214 Fall 2011 Exam 2 Answer Key
1) a) stratified
b) company payroll records
c) No. Every employee is on the payroll records so nobody is excluded from the sampling frame.
d) Yes. Since the email is coming from the CEO of the entire company, we can ex
Math 214 Spring 2011 Exam 2 Answer Key
1) a)
b)
c)
d)
e)
f)
.4 + .65 .32 = .73
1 .73 = .27
P(V|F) = .32/.4 = .8
No. P(V)P(F) = (.4)(.65) = .26 .32 = P(V and F)
(.65)(.65)(.65)(.65) = .1785
(.6)(.6)(.6)(.4) = .0864
2) a)
S
2/9
G
7/9
W
1/9
G
1/10
2/10
1/9
S
Math 214
Exam 2
Spring 2011
Instructions: This exam consists of eight questions, found on the front and back of this page. Answer each
question on the answer sheets provided. You may answer in any order, but make sure to indicate the problem
number clearl
Math 214
Spring 2011
Exam 1
Instructions: Answer all questions on the answer sheets provided. Clearly label each question with its problem
number. Box or circle your answers. Calculators are allowed, but you must show work for full credit.
1) Identify the
Math 214 Exam 1 Solutions
1) a) quantitative; ratio
b) categorical; nominal
c) categorical; ordinal
2) ~ The widths of the bars are not equal
~ The frequency axis jumps from 0 to 60
3) (using balancing point)
In order to balance, the sum of the distances
Math 214
Fall 2011
Exam 2
Instructions: This exam consists of seven questions, found on the front and back of this page. Answer all
questions on the answer sheets provided. Clearly label each question with its problem number. Box or circle
your answers. C
Math 214
Final Exam
Fall 2011
Instructions: This exam consists of nine questions, found on three pages. Answer each question on the indicated
answer sheet. Calculators are allowed, but you must show work for full credit. No other aids are allowed. Box
or
Math 214
Final Exam
Spring 2011
Instructions: This exam consists of twelve questions, found on three pages. Answer each question on the
indicated answer sheet. Calculators are allowed, but you must show work for full credit. No other aids are
allowed. Rou