instruction:
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].
question:
[-76, -63, 15, 34, 34, 62, 23, -67, -17, 84, -47]
answer:
[-69.5, -24.0, 24.5, 34.0, 48.0, 42.5, -22.0, -42.0, 33.5, 18.5]


question:
[-8, 35, 28, -100]
answer:
[13.5, 31.5, -36.0]


question:
[42, 55, -1, 83, 35, 85, 50, 90, -12, -65, 43, 94, 39, -39, -78]
answer:

[48.5, 27.0, 41.0, 59.0, 60.0, 67.5, 70.0, 39.0, -38.5, -11.0, 68.5, 66.5, 0.0, -58.5]