The Number of Accidents That Occur at a Certain Intersection

question 228

Multiple Choice

The number of accidents that occur at a certain intersection known as "Five Corners" on a Friday afternoon between the hours of 3 P.M. and 6 P.M., along with the corresponding probabilities, are shown in the following table. Find the expected number of accidents during the period in question.

• A) E = 0.081
• B) E = 0.156
• C) E = 0.106
• D) E = 0.141

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Definitions:

Median

The middle value in a dataset when the values are arranged in ascending or descending order, effectively splitting the dataset into two equal halves.

Unimodal

Describing a distribution with a single prominent peak or mode, indicating the most frequently occurring value.

StdDev

Another term for standard deviation, indicating how much individual data points deviate from the mean.

Median

The central number that splits a dataset into two equal parts, distinguishing the upper half from the lower half.