Should a linear trend be added to data that is not linear aY

Should a linear trend be added to data that is not linear?

a.You should always add a linear trend-line to any data, because the slope and intercept tell you a lot of information.

b. Don\'t ever add a linear trend to any data because no data can actually have a linear trend.

c. If the data is not linear, then one should probably add a trend that more closely matches the data\'s trend such as a square, cubic, inverse, sine series, etc.

Solution

Option C is more correct statement.

If the data is not linear, then one should probably add a trend that more closely matches the data\'s trend such as a square, cubic, inverse, sine series, etc.