From years of experience fishing for trout in the Yellowstone River you know that the mean length of trout you catch is 14.7 inches with a standard deviation of 1.5 inches.

A) Use Chebyshev's Theorm to find an interval A to B for the lengths of trout in which at least 75% of the fish you catch will fall.

B)Compute the CV for this data.

Please help me. Thank you