#### Answer

It is a probability model.

#### Work Step by Step

All probability values are non-negative and between $0$ and $1$.
The sum of all is probabilities is $1$.
Thus, the given model is a probability model.

Published by
Pearson

ISBN 10:
0-32193-104-1

ISBN 13:
978-0-32193-104-7

It is a probability model.

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