The value of the autocovariance function at lag 3 for the AR(1) model given in question 12 will be..

The value of the autocovariance function at lag 3 for the AR(1) model given in question 12 will be..

The value of the autocovariance function at lag 3 for the AR(1) model given in question 12 will be

a) 0.4
b) 0.064
c) 0
d) 0.076