is anyone able to help me with these questions for my stats class?

1. Below is a histogram of the length (in mm) of a random sample of herring maintained in a hatchery. From the histogram, answer (a) - (e). Frequency 45 50 55 60 length (mm) (a) What is the population of interest? ( b ) What are the class boundaries of the class containing 6 data points. ( c ) What is the class width? What percentage of herring in the sample are less than 49 mm? Would you expect the mean length to be larger or smaller than the median length? Explain, referring to the shape of the histogram