TASK DEFINITION: In this task you are given a list of numbers and you need to find the average of each two consecutive values. The average of two numbers a and b is calculated as: (a + b) /2. The output should be a list of the averages of each two consecutive values. A list is presented with two brackets and comma-separated values, like: [1,2,3].
PROBLEM: [91, 4, -53, 2, 79, -22, -71]

SOLUTION: [47.5, -24.5, -25.5, 40.5, 28.5, -46.5]

PROBLEM: [83, -11, 38]

SOLUTION: [36.0, 13.5]

PROBLEM: [1, -54, 44, 24, 82, -84, 85, 42, 79]

SOLUTION:
[-26.5, -5.0, 34.0, 53.0, -1.0, 0.5, 63.5, 60.5]

