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: [-72, 43, 78, -30, 53]

Answer: [-14.5, 60.5, 24.0, 11.5]


Question: [-20, 65, 24, -49, 2, -21, 86, 4, 30, 67, -98]

Answer: [22.5, 44.5, -12.5, -23.5, -9.5, 32.5, 45.0, 17.0, 48.5, -15.5]


Question: [-10, 9, -78, -16, -90, -3, 67, -56, 58, -21]

Answer:
[-0.5, -34.5, -47.0, -53.0, -46.5, 32.0, 5.5, 1.0, 18.5]