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, 39, -47]

Answer: [4.0, -4.0]


Question: [67, -95, -71, 52, -49, 89, 64, -64, -43, -95]

Answer: [-14.0, -83.0, -9.5, 1.5, 20.0, 76.5, 0.0, -53.5, -69.0]


Question: [-2, 70, -60, -47, -54, 85, 52, -74, 29, -22, 2, 26, 53, -47, 69]

Answer:
[34.0, 5.0, -53.5, -50.5, 15.5, 68.5, -11.0, -22.5, 3.5, -10.0, 14.0, 39.5, 3.0, 11.0]