5. A coefficient of skewness of -2.65 indicates a. a large negativeskewness. b.
ID: 2915264 • Letter: 5
Question
5. A coefficient of skewness of -2.65 indicates
a. a large negativeskewness.
b. a large amount ofvariation relative to the mean.
c. a large positiveskewness.
d. that the tail of thedistribution is to the right.
6. According to Chebyshev's Theorem, what percent ofthe
observations lie between the mean plusor minus 1.8 standard
deviations?
a. 56%
b. 69%
c. 95%
d. 99.7%
7. Probability values are expressed as
a. decimals.
b. common fractions.
c. percentage numbers between 0 and 1,inclusive.
d. all of the above are correct.
e. none of the above are correct.
8. The National Center for Health Statisticsreported that of
every 883 deaths in recent years, 24resulted from an
automobile accident, 182 from cancer,and 333 from heart
disease. Using the relative frequencyapproach, approximate
the probability that particular deathis due to an
automobile accident. Express itas a fraction and as a
decimal.
a. 24/883 or 0.027
b. 539/883 or 0.610
c. 24/333 or 0.072
d. None of the above
9. A study of the opinion of designers with respectto the
colors which are most desirable for usein executive offices
showed as follows:
Colors Number of opinions
Red 92
Orange 86
Yellow 46
Green 91
Blue 37
Indigo 46
Violet 2
Total= 400
What is the probability that designerdoes not prefer
yellow?
a. 1.00
b. 0.885
c. 0.000
d. 0.115
e. None of the above
Explanation / Answer
5) a. a large negative skewness. 6) b. 69% 7) d. all of the above are correct. 8) a. 24/883 or 0.027 9) b. 0.885Related Questions
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