NAME: 16km Tron
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FINAL
PROBABILITY AND STATISTICS, ECON 15A
JUNE 1 1, 2012 I
o 622sz '
E WI, and the columns are called
GEZ/TE
l. The rows in a data table (spreadsheet) are called I
2. If P(X) = P(Y), are X and Y iid? Please explain.
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TEST THREE l
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PROBABILITY AND STATISTICS, ECON 15A
MAY 6, 201 1 -
I. There is a town with two social clubs. Sixty people live in this town. Club A has twelve members. Club B has twenty members. If
membership in the two clubs is indepen
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TEST TWO
PROBABILITY AND STATISTICS, 15A
APRIL 22, 2011
1. Draw a histogram for the following data: 1, 2, 2@ 4, 4, 537; 9, l4®25, 38, 50. Draw it horizontally and use the entire width of
the page. You will lose points if it is too small.
1]. Continuing with the above: Is the data: A) Time series, ot time series. Please explain why.
12. Auto manufacturers are sensitive to the color preferences of customers. Would they like to know the modal preference, median
preference, or mean preference
NAME: I.D.:
TEST FIVE
PROBABILITY AND STATISTICS, ECON 15A
JUNE 3, 2011
1. As p (the probability of an event occurring) gets smaller, the Poisson distribution better approximates what? (Give the best answer.)
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2. There is a deck of card
NAME: I.D.:
TEST FOUR
PROBABILITY AND STATISTICS, ECON 15A
MAY 20, 2011
Use the following for questions 1 7. The probability distribution of X is {3(ng : 1/6, p(X=6) : 2/6, p(X=lO) = 3/6. [For your
convenience, this is the same distribution as above] The
NAME: I.D.:
TEST THREE
PROBABILITY AND STATISTICS, ECON ESA
NOVEMBER 5, 2010
12. (Two questions Twenty points) Gernma pians to sail to Cataiina. The probabiiity of seeing a porpoise is 20%. The probabiiity of
seeing a seai given that you saw a porpoise
NAME: I'D;
TEST FOUR
. PROBABILITY AND STATISTICS, ECON 15A -
NOVEMBER 19, 2010
YOU MUST SHOW WORK ON ALL UESTIONS THAT RE UIRE ANY WORK
1. The standard deviation of X equals three. The standard deviation of Y equals foun These variables are independent