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: [-16, 54, 42]

Answer: [19.0, 48.0]


Question: [57, -26, -99, 61, 13, 31]

Answer: [15.5, -62.5, -19.0, 37.0, 22.0]


Question: [-76, -4, -71, 56, -14, 80, 57, 92, 23, -32, -3, -19, -8, 70, -86]

Answer:
[-40.0, -37.5, -7.5, 21.0, 33.0, 68.5, 74.5, 57.5, -4.5, -17.5, -11.0, -13.5, 31.0, -8.0]