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For a normal​ distribution, verify that the probability​ (rounded to two decimal​ places) within a. 1.98...

For a normal​ distribution, verify that the probability​ (rounded to two decimal​ places) within

a. 1.98 standard deviations of the mean equals 0.95.

b. 1.15 standard deviations of the mean equals 0.75.

c. Find the probability that falls within 0.84 standard deviations of the mean.

d. Sketch these three cases on a single graph.

Math   Statistics-And-Probability   
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