Extracurricular Activities: The number of school-related extracurricular activities per student.

Activities 0 1 2 3 4 5 6 7

Students 19 39 52 57 68 41 27 17

(a) Use the frequency distribution to construct a probability distribution. (b) Graph the probability distribution using a histogram and describe its shape. (c) Find the mean, variance, and standard deviation of the probability distribution. (d) Interpret the results in the context of the real life situation.