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Suppose that during periods of meditation the reduction of a person's oxygen consumption is a random variable having a normal distribution with μ = 37.6 cc per minute and σ = 4.6 cc per minute. Find the probabilities that during a period of meditation a person's oxygen consumption will be reduced by

(a) at least 44.5 cc per minute;

(b) at most 35.0 cc per minute;

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