The 2010 US. Census found the chance of a household being a certain size. The data is in the pmf below ("Households by age," 2013). Let X be the number (size) in a household. E(X) = Z k-P(X = k] k 1 2 3 4 5 5 ?- (ormore) PlX=k) 0.257 0.335 0.153 0.137 0.053 0.024 0.015 a) The probability of a household size being more than 5, P(X > 5) : % b) In the long run, we are expected to see a household size of, E(X)= on average. Round answer to three decimal places. c} The probability that the size of a household is two is %