If the average low temperature of a winter month in Rochester, NY, is 21∘ and the standard deviation is 3.7 then according to Chebyshev's theorem, the percentage of average low temperatures in...

If the average low temperature of a winter month in Rochester, NY, is 21∘ and the standard deviation is 3.7 then according to Chebyshev's theorem, the percentage of average low temperatures in Rochester, NY, between 9.9∘ and 32.1∘ is ...