Consider the probability distribution for number of children in local families. Probability Distribution X P(x) 0 0.03 1 0.22 2 0.45 3 0.27 4 0.03 1. Find the mean number of children in local families [Select] 2. Find the standard deviation of the number of children in local families [Select] 3. Would 0 children be considered a significantly low number of children?