The life of a goldfish is normally distributed with a mean of 60 days and a standard deviation of 20 days. a. What percentage of all goldfish are expected to live for more than 60 days? b. What is the probability that a goldfish will live for more than 80 days? c. What is the probability that a goldfish will live between 25 and 45 days? d. Goldfish are sold with a seven-day replacement guarantee. What percentage of the customers get a new goldfish under this guarantee? e. 95% of all goldfish are expected to live between what range of days? f. The 10% of the goldfish that live the longest life will live more than how many days? g. The 20% of goldfish that live the shortest lives will live less than how many days?