EXERCISE: Find the average energy plan

Find the average cost of energy plans

Write a function that takes the yearly cost of energy plans from several providers

The function should return the average of cost of those energy plans.

()

Reveal answer...

(defn average-plan-cost [energy-plan-costs]
  (/ (reduce + energy-plan-costs) (count energy-plan-costs)))

(average-plan-cost [10 12])
;; => 11

(average-plan-cost [250 190 270 180 220 240 200 210 220 230])
;; => 221

Hint

The functions reduce and count should help you solve this challenge

Using a vector of numbers to represent the energy plan costs is probably the simplest approach

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