1. Median from Grouped Frequencies
1. Add up the Frequency total.
2. Produce a cumulative frequency column
3. Add 1 to this and divide by 2
4. Count down the cumulative frequency numbers until you pass this number
5. This group gives the answer.

2. Median from Grouped Frequencies
1,2,4,5,3,6,7,8,4,6,4,2,4,6,7,9,3,6,3,6,8,4,7,9,4,5,2,1,5,1,7,9,3
Group Tally Frequency Cumulative Fr
1-3
4-6
7-9 10 14 9 10 24 33 33
= 34 = 17
 Ans is Group 4 - 6