What is the entropy of the discrete-time source in bits/output (sample)? What is the entropy in bps (bits/second)?

An information source can be modeled as a bandlimited process with a bandwidth of 6000 Hz. This process is sampled at a rate higher than the Nyquist rate to provide a guard band of 2000 Hz. It is observed that the resulting samples take values in the set A = {-4, -3, -1, 2, 4, 7} with probabilities 0.2, 0.1, 0.15, 0.05, 0.3, 0.2. What is the entropy of the discrete-time source in bits/output (sample)? What is the entropy in bps (bits/second)?