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Q1) Which of the given describes the shape of distribution best?
a) Mean
b) Median
c) Mode
d) Standard deviation
e) Stem-and-leaf plot
Q2) _______________ gives us method of interpreting standard deviation whihc applies to any data set, regardless of shape of distribution.
a) Chebyshev's rule
b) The empirical rule
c) Both a and b
d) Neither a nor b
e) None of the above
Q3) A radio station claims that amount of advertising per hour of broadcast time has the average of 3 minutes and standard deviation equal to 2.1 minutes. You listen to radio station for 1 hour, at arbitrarily selected time, and carefully observe that amount of advertising time is equal to 7 minutes.
Compute z-score for this amount of advertising time.
a) z = 1.63
b) z = 1.90
c) z = 4.00
d) z = -1.90
e) z = 2.63
Find out the probability distribution, and the cumulative probability distribution of car arrivals.
The number of passengers on the Carnival Sensation during one-week cruises in the Caribbean follows the normal distribution.
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