Flashcards in Chapter 4 - Statistical Techniques Deck (7)

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1

## What is the time series analysis (average annual change) formula?

### Last figure - first figure / no of changes (NOT YEARS)

2

## What is the purpose of time series analysis?

### To analysis past and present numerical data trends over a period.

3

## what is the linear regression formula?

###
Y = M x X + C

Y - forecast

M - increase

X - no of time changes

C - starting value

Also shown as Y = A + B x X

4

## What’s the definition of long term cycles?

### Slow moving variations that may be caused by economic cycles or social trends.

5

## What is the formula to seasonal variations?

###
Y = T + S

Y - actual data

T - trend

S - seasonal variation

6

## What does deseasonalised data mean?

### Data from which the seasonal variations (trend) have been removed.

7