Make an appropriate data presentation for the following items. You can use MS Excel. Provide a short yet informative interpretation of the graph.

1. (Brase & Brase, p. 55 ) Commercial dredging operations in ancient rivers occasionally uncover archaeological artifacts of great importance. One such artifacts is Bronze Age spearheads recovered from ancient rivers in Ireland. A recent study gave the following information regarding discoveries of ancient bronze spearheads in Irish rivers.

River Bann Blackwater Erne Shannon Barrow No. of Spearheads 19 8 15 33 14Week - 2 3 4 5 6 7 8 9 10 Distance (mi) 1.5 1.4 1.7 1.6 1.9 2.0 1.8 2.0 1.9 2.0 Week 11 12 13 14 15 16 17 18 19 20 Distance (mi) 2.1 2.1 2.3 2.3 2.2 2.4 2.5 2.6 2.4 2.7