Material on TEST I- PRACTICE

# Material on TEST I- PRACTICE - Standard Deviation Mean,...

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Standard Deviation Mean, Median, Mode Coefficient of Variation and relative variation Chebyschev’s Theorem Probability, conditional probability Sets- Intersection and union Contingency Table. 1) Theo following is the number of accidents that occurred in a town at 20 intersections without a left-turn arrow. 25 30 32 22 26 10 2 32 6 13 27 22 18 12 28 35 8 29 31 8 Find the Q1, Median Q3, mean and standard deviation Q1_________ Median______ Q3__________ Mean________ Standard Deviation__________ B) Find the Measure of Skewness Measure of Skewness________ According to Chebyshev’s theorem: A) What percent of the data lies within 1.5 standard deviations of the mean A)___________

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74% of the data lies within how many standard deviations of the mean? B)___________ In a Bowl of marbles there are 10 Yellow, 5 Red and 7 Blue: A) What Is the probability of obtaining a BLUE marble on the 1 st drawing and (Without replacing it) a YELLOW marble on the 2 ND ? A)_______________
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## This note was uploaded on 08/27/2011 for the course ECONOMICS 301 taught by Professor Feng during the Summer '11 term at CUNY Hunter.

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Material on TEST I- PRACTICE - Standard Deviation Mean,...

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