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].
Q: [-26, 57, -26, 30, -14, 29, -50]
A: 
[15.5, 15.5, 2.0, 8.0, 7.5, -10.5]