Variance of the Binomial Distribution

'''
Calculate variance using the formula: n×p×(1−p), where
    n = no. of events
    p = probability of the event occurring
    (1-p) = probability that it does not happen
'''

# Find variance for a certain basketball player that has an 85% chance of making a given free throw, for 20 shots.
variance_baskets = 20 * 0.85 * 0.15
print(variance_baskets)

# Find variance for student that has a 98% chance of arriving on time to class, in throughout the 180 school days in a school year.
variance_late = 180 * 0.02 * 0.98
print(variance_late)