A motor corporation advertisement read, "The average person's I.Q. is 107. The average brown trout's I.Q. is 4. So why can't people catch brown trout?" Suppose you believe that the brown trout's mean I.Q. is not four. You catch 12 brown trout. A fish psychologist determines the I.Q.s as follows: 5; 4; 7; 3; 6; 4; 5; 3; 6; 3; 8; 5. In words, state what your random variable X represents. X represents the number of brown trout with an I.Q. equal to four. X represents the number of brown trout with an I.Q. not equal to four. X represents the mean I.Q. of a sample of brown trout. X represents the I.Q. of a brown trout