Mathematics, 26.06.2020 15:01 insulation62

The burning times of scented candles, in minutes, are normally distributed with a mean of 249 and a standard deviation of 20. Find the number of minutes a scented candle burns if it burns for a shorter time than 60% of all scented candles.

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The burning times of scented candles, in minutes, are normally distributed with a mean of 249 and a...