# Suppose Y t = 5 + 2t + X t where {X t } is a zero-mean

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## Question:

Suppose Y _{t } = 5 + 2t + X _{t } where {X _{t }} is a zero-mean stationary series with authoritarian function γ k

a.) Find the mean function for {Y _{t }}

b.) Find the autocovariance function for {Y _{t }}

c.) Is {Y _{t }} stationary? Why or why not?

**Related Book For**

## Probability and Random Processes With Applications to Signal Processing and Communications

ISBN: 978-0123869814

2nd edition

Authors: Scott Miller, Donald Childers