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: [15, -78, -76, 35, 42, 83]

Answer: [-31.5, -77.0, -20.5, 38.5, 62.5]


Question: [41, -70, 66, -59, 33, 79, 4, -30, 61, 43]

Answer:
[-14.5, -2.0, 3.5, -13.0, 56.0, 41.5, -13.0, 15.5, 52.0]