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: [25, 11, -70, 49, 17, 25, -51, -78, -13, -69, -55, 83, -8]

Answer: [18.0, -29.5, -10.5, 33.0, 21.0, -13.0, -64.5, -45.5, -41.0, -62.0, 14.0, 37.5]


Question: [43, -57]

Answer: [-7.0]


Question: [-42, 22, 93, 94, 58, -100, -73, 95, -66, 67, -57, -12, -16, 39, 50]

Answer:
[-10.0, 57.5, 93.5, 76.0, -21.0, -86.5, 11.0, 14.5, 0.5, 5.0, -34.5, -14.0, 11.5, 44.5]