Executives in the Australian Forestry Industry claim that only 7.5% of all old sawmills sites contain soil residuals of dioxin (an additive previously used for anti-sap-stain treatment in wood) higher than the recommended level. If Environment Canterbury randomly selects 12 old saw mill sites for inspection, assuming that the executives’ claim is correct: a. Calculate the probability that less than 2 site exceeds the recommended level of dioxin. b. Calculate the probability that more than or equal to 3 sites exceed the recommended level of dioxin. c. Calculate the probability that at least 2 sites exceed the recommended level of dioxin.

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