Mathematics, 07.05.2020 03:12, infoneetusinghoyg22o

The water level in a test pool changes due to the weather conditions: when the temperature increases some water evaporates, when it’s raining the water level increases. This level can be described by the normal distribution with the mean 20 ft and the standard error 1.8 ft. Find an interval that contains the middle 95% of area in this distribution.

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The water level in a test pool changes due to the weather conditions: when the temperature increases...