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: [-74, -2]

SOLUTION: [-38.0]

PROBLEM: [-34, -43, 12]

SOLUTION: [-38.5, -15.5]

PROBLEM: [7, 36, -17, -82, 3, -56, -60, 26]

SOLUTION:
[21.5, 9.5, -49.5, -39.5, -26.5, -58.0, -17.0]