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: [55, -33, 9, 23, -18, -6, -90, -6, -78]

Answer: [11.0, -12.0, 16.0, 2.5, -12.0, -48.0, -48.0, -42.0]


Question: [-36, 17, -25, -21, 45, 34, -39, 21, 71]

Answer: [-9.5, -4.0, -23.0, 12.0, 39.5, -2.5, -9.0, 46.0]


Question: [70, 26, -63, 33, -69, 18, -7, 89]

Answer:
[48.0, -18.5, -15.0, -18.0, -25.5, 5.5, 41.0]