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: [89, -29, -43, 99, -63, -80, -73, -50, -58]

Answer: [30.0, -36.0, 28.0, 18.0, -71.5, -76.5, -61.5, -54.0]


Question: [60, -62, 60, 25, -76, -95]

Answer: [-1.0, -1.0, 42.5, -25.5, -85.5]


Question: [-100, 63, -11]

Answer:
[-18.5, 26.0]