Total of probabilities
Demand for the drug at the pharmacy X3 Corner Inc. has always been 2, 3, 4 and 5 bottles a day (never sold more or less of this product in one day). During the past 300 days, the owner notices the following frequencies of application
Quantity Demand in bottles Number of days Probability
2 85
3 0.2333
4 80
5 65
total 300
a. Calculate the probability of 2 bottles per day
b. Calculate the number of days with a demand for 3 days.
c. Calculate the probability of 4 bottles a day
d. Calculate the probability of 5 bottles a day
e. What is the total of probabilities?