list_statistics.rb

scores = [75, 100, 85, 65, 84, 87, 95]

def average(array)
  sum = 0
  array.each do |score|
    sum = sum + score
  end
  return sum / array.count
end

def max(array)
  i = 0
  p = array[0]
  c = array.count

  while i < c
    if array[i] > p
      p = array[i]
    else
      i += 1
    end
  end
  return p
end

def min(array)
  i = 0
  p = array[0]
  c = array.count

  while i < c
    if array[i] < p
      p = array[i]
    else
      i += 1
    end
  end
  return p
end

puts "Average Score: #{average(scores)}%"
puts "Lowest Score: #{min(scores)}%"
puts "Max Score: #{max(scores)}%"