A time series is shown in the table below: 
Compute the five-day moving averages to remove the seasonal and random variation.
Definitions:
Equation
A claim within mathematics that equates two expressions as being identical.
Perpendicular
Describes two lines, planes, or surfaces meeting at a right angle (90 degrees).
Horizontal Line
A straight line with no slope, moving left to right parallel to the x-axis in Cartesian coordinates.
Slope-intercept Form
A way of writing linear equations using the formula \(y = mx + b\), where \(m\) is the slope of the line and \(b\) is the y-intercept.
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