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: [-68, -9, -91, -69, -63, -48, -52, -57, -56, -85, 75, -19]

Answer: [-38.5, -50.0, -80.0, -66.0, -55.5, -50.0, -54.5, -56.5, -70.5, -5.0, 28.0]


Question: [-78, -89, -72, 90, -85, -78, -35]

Answer: [-83.5, -80.5, 9.0, 2.5, -81.5, -56.5]


Question: [-38, -72, -77, -3, -35, 39]

Answer:
[-55.0, -74.5, -40.0, -19.0, 2.0]