Instructions for Problems 19-21. Suppose there is a binomial distribution with: n = 63 and p = 0.38. Answer the questions. Round answers to 3 decimal places. 19. What is the mean of the binomial distribution? 20. What is the variance of the binomial distribution? 21. What is the standard deviation of the binomial distribution? Instructions for Problems 22-25. Travel Plans. Seventeen percent of married couples say they are planning a trip to Europe. You randomly select 15 married couples and ask them if they are planning to travel to Europe. Answer the questions. Round answers to three decimal places. (Note: Carefully review the binompdf and binomcdf functions on the T183/84 or the BINOM.DIST function in Microsoft Excel.) 22. What is the probability that exactly 1 couple says they plan to travel to Europe? 23. What is the probability that more than 1 couple say they plan to travel to Europe? 24. What is the probability that at most 2 couples say they plan to travel to Europe? 25. What is the probability that less than 5 couples say they plan to travel to Europe?