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: [-68, -54, 55]

Answer: [-61.0, 0.5]


Question: [13, -16, 74, -48, 53, 39, -49]

Answer: [-1.5, 29.0, 13.0, 2.5, 46.0, -5.0]


Question: [39, -11, -60]

Answer:
[14.0, -35.5]