1) Gevron has an oil field. Since it is deep in the ground the number of barrels is estimated by a geologist. The possible number of barrels is represented by the graph below. a) Find the value of w. W = 20, 30, 40 1 3 wt 2w= 60, 50. 70 2 w 3 w = 40 50 W b) P(over 40 million barrels) = 20 30 40 50 60 70 Barrels ( m ) c) P(between 45 and 60 million barrels) d) P(under 60 million barrels) = There is a 15% chance it has 28M barrels, a 65% chance it has 42M