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: [-69, 63, 47]

SOLUTION: [-3.0, 55.0]

PROBLEM: [81, 73]

SOLUTION: [77.0]

PROBLEM: [16, -71, -92, -7, -43, -77, -71, -28, -30, -49]

SOLUTION:
[-27.5, -81.5, -49.5, -25.0, -60.0, -74.0, -49.5, -29.0, -39.5]