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: [-80, 99, -49, -90, 63, 15, 39, -5, -17]

Answer: [9.5, 25.0, -69.5, -13.5, 39.0, 27.0, 17.0, -11.0]


Question: [6, 36, -26, 83, 55, 84, -63, -78, 84, -35, 14, 9, 59, -14]

Answer: [21.0, 5.0, 28.5, 69.0, 69.5, 10.5, -70.5, 3.0, 24.5, -10.5, 11.5, 34.0, 22.5]


Question: [-29, -18, -12, -47, 47, 93]

Answer:
[-23.5, -15.0, -29.5, 0.0, 70.0]