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: [-91, 21, -84, 8, -20, -86, -35, -69, -34, 90, -11, -80]
Output:
[-35.0, -31.5, -38.0, -6.0, -53.0, -60.5, -52.0, -51.5, 28.0, 39.5, -45.5]