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].
Input: [-81, 55, -69, -4, 26, -53, -53, -87, -47, -14, -15, -68, 0]
Output:
[-13.0, -7.0, -36.5, 11.0, -13.5, -53.0, -70.0, -67.0, -30.5, -14.5, -41.5, -34.0]