Steps:
1. Input the data in Excel
2. Find maximum and minimum values (2 and 87 respectively)
3. Calculate the range, that is,
Range = (maximum -minimum)/Number of intervals. For 10 intervals;
Range = (87-2)/10 = 8.5
4. Generate the Bin. That is,
From minimum and adding range until the maximum value.
Using Histogram tool in Excel, the histogram was generated as shown in the figures attached.