Write a function f(N) that accepts an array N returns an object containing properties for mean, median and mode value of N
- create a sepparate function for each operation
- math calculation techniques:
- mean: average of all numbers in an array
- median: middle of the sorted array (average of middle two if length is even)
- mode: most frequent number(s) in the array
- importance of functional programming
- use object as a hash table in mode function
- edge case: every number appears at the same frequency:
- compare number of modes to the number of hash table object keys