1.  A newsletter, an annual exhibition and a directory of X products are also planned.

2.  A survey is conducted and an interesting statistical effect of X on Y is discovered.

3.  As new firms enter industry X, the Market supply of X will increase relative to the Market demand.

4.  But, at least, the agent never makes an inferior choice, never choosing x when y has greater expected utility.

5.  By this test X is a free agent.

6.  Failure to specify this third variable and its effects on x and y constitutes the problem of spuriousness.

7.  First, the cheque which Y had given X when Y took delivery of the car from X, was dishonoured.

8.  Had cabinet minister X put on even more weight from last year?

9.  Have X, Y or Z committed an offence?

10.  Here the X s are the unknown quantities.