Instructions: 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: [-87, -36, 30, 21, 25, 16, -69, 69, -99, 56, -69, 35, -36, -62, 80]
Output:
[-61.5, -3.0, 25.5, 23.0, 20.5, -26.5, 0.0, -15.0, -21.5, -6.5, -17.0, -0.5, -49.0, 9.0]