PROBABILITY AND STATISTICS, ECON 15A
OCTOBER 17, 2014
Mil/IE: I.D.:
, TEST ONE
Use the followingfor questions 1-5. A researcher was interested in new a person’s soore on a practical driving test is affected by the city
in which the person lives. She got a

NAME: _
I.D.: _
TEST ONE
PROBABILITY AND STATISTICS, ECON 15A
OCTOBER 12, 2012
Use the following for questions 1-6. Subjects were randomly assigned to one of three conditions: (a) playing a highly aggressive video
game; (b) playing a mildly aggressive vid

Stuff I Need to Know for Econ 15A-B
These questions represent everything you need to know for the upcoming exam (only as far
as we have covered in lecture, of course). Items that are bulleted or prefaced with * are
important and useful, but they will not

CHAPTER 2
THE WATER PLANET
Objectives
1.
2.
3.
4.
5.
To acquire an appreciation for the physical and chemical processes that led to the formation of the solar system
and the location of Earth in this system.
To understand the difference between time, as j

CHAPTER 6
THE CHEMISTRY OF SEAWATER
Objectives
1.
2.
To acquaint you with the dissolved, particulate and gaseous components in seawater.
To illustrate the complex physical, chemical, and biological feedback systems that have regulated the
concentrations,

NAME: _
I.D.: _
TEST FIVE
PROBABILITY AND STATISTICS, ECON 15A
DECEMBER 9, 2009
For the following seven questions, use this information. The mean test score is 640. The standard deviation is 200.
1.
Amy got a score of 920 and Cal got a score of 760. What

NAME: _
I.D.: _
FINAL
PROBABILITY AND STATISTICS, ECON 15A
DECEMBER 9, 2009
1-2. (Two questions twenty points) There is a test. The mean test score is 640. The standard deviation is 200. What is the interquartile range? Show all your work.
3-4. (Two quest

NAME: _
I.D.: _
TEST 4
PROBABILITY AND STATISTICS, 15A
NOVEMBER 20, 2009
1.
A binomial distribution is determined by two parameters. What are they?
2.
In the binomial formula, there are two distinct parts: n!/x!(n-x)! and px(1-p)n-x. What does the n!/x!(n

NAME: _
I.D.: _
TEST THREE
PROBABILITY AND STATISTICS, ECON 15A
NOVEMBER 6, 2009
1. A bowl has 10 apples and 6 oranges. What is the probability of randomly picking a piece of fruit and getting an apple on the first or
the second draw? Assume that apples a

NAME: _
I.D.: _
TEST TWO
PROBABILITY AND STATISTICS, 15A
OCTOBER 23, 2009
1.
The standard deviation is not the arithmetic mean of the deviations. What kind of mean of the deviations is the standard deviation?
2.
Write the formula for third moment from the

NAME: _
I.D.: _
TEST ONE
PROBABILITY AND STATISTICS, 15A
OCTOBER 9, 2009
FOR QUESTIONS WITH EXPERIMENTS, YOU MUST REFER TO THE EXPERIMENT GENERIC ANSWERS NOT WELCOME
1-3. (Three questions thirty points) Knowledge of how cockroaches forage for food is valu

The FIFTEEN QUESTIONS follow
1) Five cards are dealt, what is the probability that the 5th one is a king?
[4/52]
2) Five cards are dealt, what is the probability that the 5th one is a king, given that the first four are queens?
[4/48]
3) Five cards are de

NAME: _
I.D.: _
TEST TWO
PROBABILITY AND STATISTICS, ECON 15A
OCTOBER 31, 2014
1. The height of men is more or less bell-shaped. The mean is 69 inches with a standard deviation of 3 inches. Approximately what
proportion of men is between 66 and 72 inches

NAME: _
I.D.: _
TEST THREE
PROBABILITY AND STATISTICS, ECON 15A
NOVEMBER 14, 2014
PLEASE LEAVE YOUR ANSWER IN UN-SIMPLIFIED, FRACTIONAL FORM
e.g. 2/3 x 8/10 (2/10 + 5/20)
1.
Three cards are picked: What is the probability of not getting any hearts?
2.
Thr

NAME: _
I.D.: _
TEST FOUR
PROBABILITY AND STATISTICS, ECON 15A
DECEMBER 1, 2014
1. If X and Y are independent, then E(XY) = E(X)E(Y). What does E(XY) equal if X and Y are not independent? We are NOT
looking for a definitional formula such as E(XY) = xyP(x

NAME: , I.D.:
' TEST THREE
PROBABILITY AND STATISTICS, ECON 15A
NOVEMBER 4, 2016
A bowl has 10 apples and 6 oranges. What is the probability of randomly picking a piece of fruit and getting an applaomthmr
cond dr . Assume that apples and oranges have an e

_
NAME:
M
TEST ONE
PROBABILITY AND STATS
OCTOBER 9. NI 9
Use me f .
Oilowmg for questions 17. A researcher is investigltina alum
5 of .
55 12?) 3 '81 to complete the Stanford Sleepineu Sale (558).
. did the his or her level of alertness by responding with

Ordinal refers to
quantities that have a
natural ordering. With
Frequency distribution.
Yes
Yes
Yes
Yes
ordinal data you cannot
Median and percentiles.
No
Yes
Yes
Yes
state with certainty
whether the intervals
Add or subtract.
No
No
Yes
Yes
between each v

The right side of a persons face is said to resemble the whole face more than the left side does. Kennedy, Beard,
and Carr (1982) asked 91 subjects to view full-face pictures of six different faces. Testing for recall was conducted
one week later, when su

The right side of a persons face is said to resemble the whole face more than the left side does. Kennedy,
Beard, and Carr (1982) asked 91 subjects to view full-face pictures of six different faces. Testing for recall was
conducted one week later, when su

NAME: _
I.D.: _
FINAL
PROBABILITY AND STATISTICS, ECON 15A
JUNE 10, 2013
EACH QUESTION IS WORTH 15 POINTS YOU MUST CROSS OUT TWO QUESTIONS (not three)
1 2. (Two questions thirty points) New, slick swimsuits were introduce in the 2008 summer Olympics, and

Lecture 6
Individual Demand
Price changes, income changes
Normal, inferior goods; Engel curves
Price Changes
Y
Price/Consumption curve
C
Price
Of X
B
A
I/3
I/2
I/1
X
3
Demand curve
2
1
C B A
X
Price changes and the demand curve:
An increase in the price

Lecture 2: Consumer Behavior (1)
Market bundles
Indifference curves
Marginal rate of substitution
Utility functions
Consumer theory: strategy
Start with choice of a single consumer
The consumer buys a bundle of goods
Individual demand depends on:
Avai

Intermediate Economics I: Econ 100A (62080)
Professor Linda Cohen
Fall 2015
This course explores the behavior of the entities that make up our economy consumers, workers, firms, capitalists,
governments. The course builds on the topics covered introductor

NAME: _
I.D.: _
FINAL
PROBABILITY AND STATISTICS, ECON 15A
DECEMBER 17, 2014
1.
I ask a person in the army, What is your military rank? What scale of measurement am I going to use with this variable?
2.
I ask a student at UCI, What is the farthest north y