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: [-12, -89]

Answer: [-50.5]


Question: [-68, -54, 55]

Answer: [-61.0, 0.5]


Question: [-75, 93, -10, 26, -29, -79, 85, 62, -66, 36, 80]

Answer:
[9.0, 41.5, 8.0, -1.5, -54.0, 3.0, 73.5, -2.0, -15.0, 58.0]