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:
[57, -42, -14, -48, -62, 7, -9]
answer:
[7.5, -28.0, -31.0, -55.0, -27.5, -1.0]


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:
[13, -82, 43, -15, 21, -2, 28, 74, -30, -50, -16]
answer:

[-34.5, -19.5, 14.0, 3.0, 9.5, 13.0, 51.0, 22.0, -40.0, -33.0]