A Courier Company Has Established a Record in a Major

question 11

Short Answer

A courier company has established a record in a major city for delivering 90% of its packages the next working day.
-What is the probability that the number of delivered will be within 2 standard deviations of the mean?

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Definitions:

Simplify

To make something less complex or complicated, making it easier to understand or solve.

Radical

Refers to the root of a number, with the most common being the square root, though it can refer to cube roots or higher.

Square Root

A number which produces a specified quantity when multiplied by itself.

Square Root

The figure that, upon being multiplied with itself, results in the starting number.