An аrticle in The Jоurnаl оf Dаta Science ["A Statistical Analysis оf Well Failures in Baltimore County" (2009, Vol. 7, pp. 111-127)] provided the following table of well failures for different geological formation groups in Baltimore County. Geological Formation Group Wells Failed Wells Not Failed Wells Total Gneiss 170 1,515 1,685 Granite 2 26 28 Loch Raven Schist 443 3,290 3,733 Mafic 14 349 363 Marble 29 280 309 Prettyboy Schist 60 1,343 1,403 Other Schists 46 887 933 Serpentine 3 36 39 TOTAL 767 7,726 8,493 Let A denote the event that the geological formation group has more than 1000 wells, and let B denote the event that a well failed. Determine the number of wells in each of the following events. Find the following, P(A Bc) TI-84 online
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