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:
[-74, -74, 64, -88, 59, 99, 27, -18, -49]
answer:
[-74.0, -5.0, -12.0, -14.5, 79.0, 63.0, 4.5, -33.5]


question:
[28, -83, -37, -51]
answer:
[-27.5, -60.0, -44.0]


question:
[41, 92, -17]
answer:

[66.5, 37.5]