If the Probability of No People Waiting Is 0

question 2

Multiple Choice

If the probability of no people waiting is 0.10, the probability of one person waiting is 0.09 and the probability of two people waiting is 0.08, what is the probability of three or more people waiting?

• A)0.27
• B)0.73
• C)0.90
• D)Cannot be determined

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Definitions:

Standard Deviation

A measure of the amount of variation or dispersion in a set of values, indicating how much the values differ from the mean of the data set.

Random Variable

A variable that can take numerical outcomes as its values, which are derived from random events.

Brake To A Stop

The action or process of slowing down or stopping a moving vehicle by applying its brakes.

Normally Distributed

A type of continuous probability distribution for a real-valued random variable with a bell-shaped curve symmetric about its mean.