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: [-91, 59, -52, 34, 5, 83, 49, -1, 27]

Answer: [-16.0, 3.5, -9.0, 19.5, 44.0, 66.0, 24.0, 13.0]


Question: [40, 77, 36, 50, 36, 89, -13, 75, -57, -13, 15, 42, 72, 21]

Answer: [58.5, 56.5, 43.0, 43.0, 62.5, 38.0, 31.0, 9.0, -35.0, 1.0, 28.5, 57.0, 46.5]


Question: [-10, 16, 20, -76]

Answer:
[3.0, 18.0, -28.0]