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: [-19, 17, -76, 38, 49, -1, 98, -89, -27, 49, 6, 44, 81, 0, 80]

Answer: [-1.0, -29.5, -19.0, 43.5, 24.0, 48.5, 4.5, -58.0, 11.0, 27.5, 25.0, 62.5, 40.5, 40.0]


Question: [-61, -4, 59, 97, 77, 15, 50, -66, 99, 90, -77, 53]

Answer: [-32.5, 27.5, 78.0, 87.0, 46.0, 32.5, -8.0, 16.5, 94.5, 6.5, -12.0]


Question: [66, -53, -13, 28]

Answer:
[6.5, -33.0, 7.5]