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: [-36, 17, -25, -21, 45, 34, -39, 21, 71]

Answer: [-9.5, -4.0, -23.0, 12.0, 39.5, -2.5, -9.0, 46.0]


Question: [-81, -5, -18, -96, 28, -86, 50, 63, 80, -52]

Answer: [-43.0, -11.5, -57.0, -34.0, -29.0, -18.0, 56.5, 71.5, 14.0]


Question: [-76, 79, -2, 67, 27, 11, 39, 1, 13]

Answer:
[1.5, 38.5, 32.5, 47.0, 19.0, 25.0, 20.0, 7.0]