How many sales will be won?
Now Amir wants to know how many deals he can expect to close each week if his win rate changes. Luckily, you can use your binomial distribution knowledge to help him calculate the expected value in different situations. Recall from the video that the expected value of a binomial distribution can be calculated by \(n \times p\).
This exercise is part of the course
Introduction to Statistics in R
Exercise instructions
- Calculate the expected number of sales out of the 3 he works on that Amir will win each week if he maintains his 30% win rate.
- Calculate the expected number of sales out of the 3 he works on that he'll win if his win rate drops to 25%.
- Calculate the expected number of sales out of the 3 he works on that he'll win if his win rate rises to 35%.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Expected number won with 30% win rate
won_30pct <- ___ * ___
won_30pct
# Expected number won with 25% win rate
won_25pct <- ___
won_25pct
# Expected number won with 35% win rate
won_35pct <- ___
won_35pct