29. Find the mean and variance of a deck of 52 cards, where an ace is counted as 11 and a picture card as 10. Construct a histogram of the card values. Shuffle the deck and deal two samples of 20 cards (starting with a full deck each time); compute the mean and variance and construct a histogram. How does the sample data differ from the population data? Repeat this experiment for samples of 5 cards and summarize your conclusions.