Final answer:
The mean weight of the big cats is 304 pounds, and the mean weight of the two largest cats is 475 pounds.
Step-by-step explanation:
The mean weight of the big cats in the table can be calculated by finding the sum of their weights and dividing it by the total number of cats.
The mean weight of the cats is (143 + 227 + 200 + 550 + 400) / 5 = 304 pounds.
The two largest cats in the table are the lion and the tiger. To find the mean weight of these cats, we add their weights and divide by 2.
The mean weight of the lion and the tiger is (550 + 400) / 2 = 475 pounds.