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TABLE 2-6 The Following Are the Durations in Minutes of a Sample

question 2

Multiple Choice

TABLE 2-6
The following are the durations in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier.
TABLE 2-6 The following are the durations in minutes of a sample of long-distance phone calls made within the continental United States reported by one long-distance carrier. -Referring to Table 2-6, if 100 calls were sampled, ________ of them would have lasted 20 minutes or more. A) 26 B) 16 C) 74 D) None of the above.
-Referring to Table 2-6, if 100 calls were sampled, ________ of them would have lasted 20 minutes or more.

Definitions:

Uniformly Distributed

Uniformly distributed indicates that all outcomes in a data set or probability distribution have the same or nearly equal chance of occurring.

Standard Deviation

A tool to determine the degree of difference or dispersion within a batch of data.

Standard Normal

A type of normal distribution with a mean of 0 and a standard deviation of 1.

Random Variable

A numerical value variable resulting from random phenomena.