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: [-55, -71, -30, -22]

Answer: [-63.0, -50.5, -26.0]


Question: [81, 73]

Answer: [77.0]


Question: [-2, 44, 55, 28, 81, 72, -83, -2, -96, 39, 51, -87, 100, 69, -11]

Answer:
[21.0, 49.5, 41.5, 54.5, 76.5, -5.5, -42.5, -49.0, -28.5, 45.0, -18.0, 6.5, 84.5, 29.0]