Online Bankers an Official from the Securities Commission Estimates That 75% of That

question 166

Short Answer

Online Bankers
An official from the securities commission estimates that 75% of all online bankers have profited from the use of insider information.Assume that 15 online bankers are selected at random from the commission's registry. ​ ​
-{Online Bankers Narrative} What is the expected number of Online bankers who have profited from the use of insider information?

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Definitions:

Standard Deviation

A statistic that measures the dispersion of a dataset relative to its mean, indicating how spread out the data points are.

Grouped Data

Data that has been organized into categories, classes, or intervals, making it easier to analyze and interpret.

Class Midpoint

The value halfway between the lower and upper class limits.

Empirical Rule

A statistical rule stating that for a normal distribution, nearly all data falls within three standard deviations of the mean.