For the smokestack with the cleaner installed, find the probability that the amount of pollutant in a given sample will exceed 1/2. (d) Given that the amount of pollutant in a sample collected above the smokestack with the cleaner is observed to be 1/2, find the probability that the amount of pollutant exceeds 1.5 above the other smokestack (without the cleaner).

If 25% of y is 30, what is 60% of y?

Multiply: 2.7 × (–3) × (–1.2). a. –9.72 b. –10.8 c. 10.8 d. 9.72

Here are the 30 best lifetime baseball batting averages of all time, arranged in order from lowest to highest: 0.319, 0.329, 0.330, 0.331, 0.331, 0.333, 0.333, 0.333, 0.334, 0.334, 0.334, 0.336, 0.337, 0.338, 0.338, 0.338, 0.340, 0.340, 0.341, 0.341, 0.342, 0.342, 0.342, 0.344, 0.344, 0.345, 0.346, 0.349, 0.358, 0.366 if you were to build a histogram of these data, which of the following would be the best choice of classes?