2. [15 pts) Consider a digital communications link: A 48-bit message is sent on the link and the link BER is 10-2 What is the probability of having no errors in the 48-bit word? (b) What is the probability of having 2 errors in the 48-bit word? What is the probability of having 1 or more errors in the 48-bit word? (d) What is the maximum BER which would ensure at least a 99.9% probability of no errors in the 48-bit word? Assume BER is of the form 10-*, where x is an integer (valid BER would be 10-3, 10-4, 10-5....)