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: [58, -99]

Answer: [-20.5]


Question: [83, -87, 28, 17, 96, 39, -82]

Answer: [-2.0, -29.5, 22.5, 56.5, 67.5, -21.5]


Question: [-100, 68, -69, 30]

Answer:
[-16.0, -0.5, -19.5]