Question: Assume that the weights of a group of individuals are approximately Normally distributed with mean 64 kg and standard deviation 12 kg. What is the probability that a person chosen at random from the group will weigh between 43 and 76 kg? If 5 individuals are selected from this population, find the probability that:

a). none will weigh between 43 and 76 kg,

b). at least one will weigh between 43 and 76 kg,

c). exactly two will weigh between 43 and 76 kg?