7.2 A confectionery company produces 100-gram Real Chocolate bars that have a mean chocolate content of 70
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7.2 A confectionery company produces 100-gram ‘Real Chocolate’
bars that have a mean chocolate content of 70 grams with a standard deviation of 0.8 gram. The variation in chocolate content follows a Normal distribution. What is the probability that a chocolate bar chosen at random contains:
(a) More than 71 grams?
(b) More than 68 grams?
(c) Less than 70 grams?
(d) Between 69 and 72 grams?
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