Question

10. Write a function in HASKELL howManyBelowAverage that returns how many of three integer inputs are...

10. Write a function in HASKELL

howManyBelowAverage that returns how many of three integer inputs are below its average value. (Hint: utilize the averageThree function.) howManyBelowAverage :: Integer -> Integer -> Integer -> Integer

averageThree :: Integer -> Integer -> Integer -> Float

AverageThree x y z = fromInteger(x+y+z) / 3.0

Can someone please help me solve the howManyBelowAverage function?

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Answer #1

Haskell complete code is provided below. The required function is highlighted.If any doubt please comment below.

Haskell Code:

averageThree :: Integer -> Integer -> Integer -> Float --- Given function
averageThree x y z = fromInteger(x+y+z) / 3.0

howManyBelowAverage :: Integer -> Integer -> Integer -> Integer -- counting numbers below average
howManyBelowAverage a b c = (if (fromInteger a < averageThree a b c)then 1 else 0)
+ (if (fromInteger b < averageThree a b c) then 1 else 0)
+ (if (fromInteger c < averageThree a b c) then 1 else 0)
main = do
putStrLn "Count of numbers below Average:"
print(howManyBelowAverage 40 10 10) --function call

Output:

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