Find the probability that a randomly generated bit string of length 10 does not contain a 0 if bits are independent and if a) a 0 bit and a 1 bit are equally likely. b) the probability that a bit is a 1 is 0.6. c) the probability that the ith bit is a 1 is 1∕2i for i = 1, 2, 3,…, 10.