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:
[-42, 68, -97, 81, 6, 30, 71, 61, -73]
answer:
[13.0, -14.5, -8.0, 43.5, 18.0, 50.5, 66.0, -6.0]


question:
[-60, -90, 0, -81, 8]
answer:
[-75.0, -45.0, -40.5, -36.5]


question:
[68, -19, -73, -30, 66, 90, -83, 53, 47]
answer:

[24.5, -46.0, -51.5, 18.0, 78.0, 3.5, -15.0, 50.0]