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].
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Question: [-9, 97, -37]

Answer: [44.0, 30.0]


Question: [-69, 63, 47]

Answer: [-3.0, 55.0]


Question: [-7, 10, -2, 25, 15, 85, 21, 60, -78, 54]

Answer:
[1.5, 4.0, 11.5, 20.0, 50.0, 53.0, 40.5, -9.0, -12.0]