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Oxygen consumption during periods

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The reduction of a person's oxygen consumption during periods of transcendental meditation may be looked upon as a random variable having the normal distribution with mean 38.6 cc per minute and standard deviation of 6.5 cc per minute. Find the probability that during a period of transcendental meditation a person's oxygen consumption will be reduced by at least 33.4 cc per minute.

1. .7881
2. .2881
3. .2119
4. .7119

Reference no: EM131444582

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