1) Using the empirical rule, determine the approximate percentage of a normal distributionthat is expected to fall within 1 standard deviationof the mean.
C. 47.5 %
2) A department of mathematical sciences has majors in four areas
Major Number of Majors
Computer Science 22
Actuarial Science 15
If a circle graph is constructed for these data, what would be the percentage (to the nearest tenth of a percent) of the graph for each major?
3) Identify the statement “the number of telephone calls arriving at a switchboard per ten minute period” as an example of:
1. Answer: D. 68%
Based on the empirical rule, in a normal distribution 68% of the data will fall within 1 standard deviation of the mean.
2. Please …
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