Exhibit 5-8 the Random Variable X Is the Number of Occurrences of Occurrences

question 31

Multiple Choice

Exhibit 5-8
The random variable x is the number of occurrences of an event over an interval of ten minutes. It can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. It is known that the mean number of occurrences in ten minutes is 5.3.
-Refer to Exhibit 5-8. The probability that there are 8 occurrences in ten minutes is

• A).0241
• B).0771
• C).1126
• D).9107

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Definitions:

Nonparametric Tests

Statistical tests that are not based on the assumption that the data follows a particular distribution, used especially for ordinal or nominal data.

Likelihood

Likelihood in statistical analysis is the probability that a particular set of observations would occur given a specific model.

Wilcoxon Rank Test

A nonparametric statistical test that compares two paired groups to determine if their population mean ranks differ.

McNemar Test

A statistical analysis applied to matched nominal data to assess if the frequencies at the margins of rows and columns are the same.