Danville Flooring tracked the number of broken tiles in each shipment it received last year. How many shipments had at least 60 broken tiles but less than 70 broken tiles?
Stem | Leaf 
6 | 3, 4, 8
7 | 4
8 | 3, 4
9 | 0
Count all the leaves in the row with stem 6.

You counted 3 leaves, which are blue in the stem-and-leaf plot above. 3 shipments had at least 60 broken tiles but less than 70 broken tiles.