# Haskell functions simple

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[login to view URL] a function count_odds that produces the number of odds in a list of numbers. For example, count_odds [1,2,3,4,7,8] should return 3.

2. Write a function remove_last_two that removes the last two elements in a list. If the list contains two or less elements, then it should return the list unchanged. For example, remove_last [1,2,3,4,5,6] should return [1,2,3,4].

3. Using library functions, define a function halve :: [a ] → ([a ], [a ]) that splits an even-length list into two halves. For example, halve [1, 2, 3, 4, 5, 6] should return ([1, 2, 3], [4, 5, 6]).

4. Write a function min_max that takes a list of numbers and returns the minimum, as well as the maximum element in the list as a pair. For example, min_max [4,3,6,5,9,10,8] should return (3,10) as the answer.

5. Redefine the function mult x y z = x * y * z using lambda expressions.

6. Write a function primes_before that takes a natural number n and returns in a list the prime numbers that are smaller than n. For example, primes_before 10 should return [2,3,5,7].

7. Write a function sum_average_count that takes a list of numbers and returns as a triple the sum, average and count of the numbers. For example, sum_average_count [2,4,12] should return (18,6,3).

8. Write a function to_list that takes a tuple of three components and returns the list of those components. For example, to_list (3,4,5) should return [3,4,5].

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