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: [67, 45, 59, -50, -28, -70, -84, 69, 72, 53]

Answer: [56.0, 52.0, 4.5, -39.0, -49.0, -77.0, -7.5, 70.5, 62.5]


Question: [-88, 35, 91, 54, -25]

Answer: [-26.5, 63.0, 72.5, 14.5]


Question: [-74, 35]

Answer:
[-19.5]