. Question 18 The table gives results from a random sample regarding the number of cars in a household. # of cars (X ) # of homes (f) P(X) X . P(X) 0 19 7 2 11 3 19 20 Complete the table (remember that P(X) = -), and then use the fact that: n E(X) - H =XX . P(X) to find the expected (mean) number of cars per household. Round your answers in the table to three decimals. 4 =. Question 19 20 18 16 14 10 Frequency 16.5 17.5 18.5 19.5 20.5 21.5 Age Q Use the random sample data in the graph above to complete the PDF table: X P(X) 17 19 20 21 Do this on a separate sheet of paper. Round probabilities to three decimals if needed. Then find the expected age of a randomly chosen person from this group. Round your answer to one decimal.. Question 20 # of TV's # of households 0 39 39 N 36 34 4 29 20 Find the probability (round to three decimals) that a household has: a. At most one TV: b. More than two TV's: c. No TV's: d. At least one TV: e. What is the expected number of TV's in a household? Round to two decimals