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Moving Averages

Moving Averages. Example The table below represents test results for two students from last year’s 11M2. a) Obtain the three point moving average for each of these students. b) Plot the data onto a set of axes and draw a trend line for each student. Example

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Moving Averages

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  1. Moving Averages Example The table below represents test results for two students from last year’s 11M2. a) Obtain the three point moving average for each of these students. b) Plot the data onto a set of axes and draw a trend line for each student.

  2. Example The list below represents the number of children absent from school for a fifteen-day period. a) Why is a five-point moving average more suitable for this data? b) find the five-point moving average for this data. c) Plot the data onto a set of axes and draw the trend line.

  3. Example The quarterly phone bills for one family over a three-year period are given in the table below. a) Draw a graph for the data b) Calculate the four quarterly moving averages for the data. c) Plot the moving averages on the same graph as the original data, joining up the points with a dotted line. d) What is the trend in payments over this period?

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