Mathematics, 15.04.2020 04:57 blueval3tine

The level of nitrogen oxides (NOX) in the exhaust of cars of a particular model varies Normally with mean 0.25 grams per mile (g/mi) and standard deviation 0.05 g/mi. Government regulations call for NOX emissions no higher than 0.3 g/mi. A company has 4 cars of this model in its fleet. What is the probability that the average NOX level of these cars is above the 0.3 g/mi limit? Answer to 4 decimal places.

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The level of nitrogen oxides (NOX) in the exhaust of cars of a particular model varies Normally with...