What r the mean and variance of the distribution

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a broadcasting executive is reviewing the prospects for a new television series,according to her judement , the probability is 0.25 that the show will achieve a rating higher than 17.8, and the probability is 0.15 that it will achieve a rating higher than 19.2. If the executive's uncertinity about the rating can be represented by normal distribution , what r the mean and variance of the distribution?

Reference no: EM13242906

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