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: [43, -22, -75, -92, -34, 33, -60, -65, 89]

Answer: [10.5, -48.5, -83.5, -63.0, -0.5, -13.5, -62.5, 12.0]


Question: [77, 66, 11]

Answer: [71.5, 38.5]


Question: [39, 2, -88, -15]

Answer:
[20.5, -43.0, -51.5]