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: [-74, -64, 22, 84, -16, -75, -57, -94, -96, -56, 9, -30, -61]
Output:
[-69.0, -21.0, 53.0, 34.0, -45.5, -66.0, -75.5, -95.0, -76.0, -23.5, -10.5, -45.5]