7stud
myAvg' :: Int -> [Int] -> [ Double ] -> Double myAvg' sum count [] = sum / fromIntegral count myAvg' sum count (x:xs) = myAvg' (x + sum) (n + 1) xs
The length function was introduced before the sum function, which I see you are using in your function definition.
Hmm...I guess you aren't using the sum function--that's one of your variable names. I wonder how Prelude knows sum is a variable name and not the sum function? I changed the name sum to s, and I get this error: Prelude Data.List> :load ehask.hs [1 of 1] Compiling Main ( ehask.hs, interpreted ) ehask.hs:2:24: Couldn't match expected type `Double' against inferred type `Int' In the expression: s / fromIntegral count In the definition of `myAvg'': myAvg' s count [] = s / fromIntegral count Failed, modules loaded: none.