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Three-way catalytic converters have been installed in new vehicles in order to reduce pollutants from motor vehicle exhaust emissions. However, these converters unintentionally increase the level of ammonia in the air. Environmental Science & Technology published a study on the ammonia levels near the exit ramp of a San Francisco highway tunnel. The data in the table represent daily ammonia concentrations (parts per million) on eight randomly selected days during afternoon drive-time in the summer of a recent year.

Ammonia

1.53

1.50

1.37

1.51

1.55

1.42

1.41

1.48

Is the relative frequency of the ammonia level skewed to the right?

true or false

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9996802

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