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Sales of product A between 20X7 and 20Y1 were as follows. Year Units sold ('000s) 20X7 20 20X8 18 20X9 15 20Y0 14 20Y1 11

Sales of product A between 20X7 and 20Y1 were as follows.
Year Units sold ('000s)
20X7 20
20X8 18
20X9 15
20Y0 14
20Y1 11
Required
Determine whether there is a trend in sales. In other words, decide whether there is any correlation between the year and the number of units sold.

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