Tracy's Pie Shop recently sold 15 pies, of which 3 were blackberry pies. Considering this data, how many of the next 20 pies sold should you expect to be blackberry pies?
blackberry pies
Based on the data provided, the proportion of blackberry pies sold is 3/15 = 1/5 or 20%.
Therefore, you should expect to sell 20% of the next 20 pies as blackberry pies, which is equal to 20% of 20 = 4 blackberry pies.