The data below show the number of manufacturing plants in the UK in 1991/92 arranged according to employment:

Number of employees ....................... Number of firms
1– 95 ........................................................... 409
10– ........................................................... 15 961
20– ........................................................... 16 688
50– ........................................................... 7 229
100– ........................................................... 4 504
200– ........................................................... 2 949
500– ........................................................... 790
1000– ........................................................... 332

Draw a bar chart and histogram of the data (assume the mid-point of the last class interval is 2000). What are the major features apparent in each and what are the differences?