13. [-/3.54 Points] DETAILS BBUNDERSTAT12 2.2.008.MI. MY NOTES ASK YOUR TEACHER Commercial dredging operations in ancient rivers occasionally uncover archaeological artifacts of great importance. One such artifact 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 24 15 28 14 (a) Make a Pareto chart for these data 30 30 30 30 o. of Spearhead No. of Spearheada No. of Spearhead 5 20 No. of Spearhead 20 20 No. 40 Bam Barrow Blackwater Erne Shannon Shannon Eme Blackwater Barrow Bar Bladevater Barrow Eme Barn Shannon Shannon Bann Eme Barrow Blackwater (b) Make a circle graph for these data Shannon - 32.9% Shannon - 37.9% Shannon - 40.9% Bann - 28.2% Bann - 18.9% Blackwater - 4.7% Blackwater - 6.5% Bann - 21.5% Blackwater - 12.6% Barr - 16.5% Erne - 17.6% Barr - 14.7% Erne - 15.8% Barr - 15.1% Erne - 16.1% Shannon - 34.8% Bann - 22.8% Blackwater - 10.9% Barr - 15.2% Erne - 16.3%