Extrapolation definition
when the trend line is extended to forecast future sales
Four period moving average definition
the average figure based on four time periods (often quarters of a year)
it moves with time
it is usually calculated using centering based on an 8 period total
Line of best fit definition
a line that goes roughly through the middle of all the scatter points on a graph
Moving averages definition
a succession of averages derived from successive segments of a series of values
Quantitative sales forecasting definition
such as time series analysis involves making future predictions based on trends identified from post data
Scatter graphs definition
a graph showing the performance of one variable against another independent variable on a variety of occasions
Three period moving averages definition
an average calculated by adding 3 periods up and dividing by 3