John maintains two separate lines of lobster traps in Penobscot Bay. The East Bay traps produce a mean of 12 pounds of lobsters per day with a standard deviation of 7 pounds. The West Bay traps produce a mean of 10 pounds of lobsters a day with a standard deviation of 4.5 pounds. Which of the following are the mean and approximate standard deviation of the total weight of lobsters John traps in a day?
answer choices
Mean = 11; Standard deviation = 11.50
Mean = 11; Standard deviation = 8.32
Mean = 22; Standard deviation = 5.75
Mean = 22; Standard deviation = 8.32
Mean = 22; Standard deviation = 11.50