#### Answer

It is a probability model.

#### Work Step by Step

As 0.2 + 0.3 + 0.1 + 0.4 = 1
and in a probability model, the sum of all probabilities is 1, therefore the following is a probability model.

Published by
Pearson

ISBN 10:
0321979478

ISBN 13:
978-0-32197-947-6

It is a probability model.

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