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].
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Question: [-69, -35, 56, 64]

Answer: [-52.0, 10.5, 60.0]


Question: [40, -94, 40, -52, -80]

Answer: [-27.0, -27.0, -6.0, -66.0]


Question: [-14, 22, 40, -53, 53, 94, -63, -97, 96, 77, 38, -35, 97, 4, 31]

Answer:
[4.0, 31.0, -6.5, 0.0, 73.5, 15.5, -80.0, -0.5, 86.5, 57.5, 1.5, 31.0, 50.5, 17.5]