PDF chapter test TRY NOW

In a coffee shop, the number of coffees produced every hour is given below.
 
Hours 1 - 3 4 - 6 7 - 9 10 - 12 13 - 15 16 - 18
Number of coffee 19 5 4 13 20 10
 
Find the median hours of coffees produced.
 
Answer:
 
The median number of coffees produced is
1