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: [31, -43]

Answer: [-6.0]


Question: [9, 62, 4, -63, -50, 9, -19, -42, -20]

Answer: [35.5, 33.0, -29.5, -56.5, -20.5, -5.0, -30.5, -31.0]


Question: [-17, -80, 84, -94, 24, -66]

Answer:
[-48.5, 2.0, -5.0, -35.0, -21.0]