A random variable X is exponentially distributed with a mean of 0.1. a. What is the rate parameter λ?
b. What is the standard deviation of X

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?

Me i'm timed right now! there's 4 answer

Six random samples were taken each year for three years. the table shows the inferred population for each type of fish for each year.