A Business with 5 Copy Machines Keeps Track of How

question 73

True/False

A business with 5 copy machines keeps track of how many copy machines need service on a given day.It believes this is binomially distributed with a probability of p = 0.2 of each machine needing service on any given day.It has collected the following based on a random sample of 100 days. Given this information the expected number of days on which exactly 1 machine breaks down is 40.96.

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Definitions:

Mean Number

The mean value obtained from a series of numbers, determined by adding all the numbers together and then dividing by the total number of values in the series.

Safety Roadblock

A preventative measure set up temporarily on roads to enhance safety by controlling traffic flow, reducing speed, or preventing access to certain areas.

First Serves

In tennis, the initial serve attempt in a point; this serve, if successful, can set the tone for the remainder of the play.

Probability

Probability quantifies the likelihood of an event happening, ranging from 0 (impossibility) to 1 (certainty).