1  2  3  4

1  _  _  _  _

2  _  _  _  _

3  _  _  _  _

4  _  _  _  _


ACROSS
1)  an average of n numbers computed by adding some function of the numbers and dividing by some function of n
2)  an officer who acts as military assistant to a more senior officer
3)  the men and women who man a vehicle (ship, aircraft, etc.)
4)  range of what one can know or understand


DOWN
1)  a waterproof raincoat made of rubberized fabric
2)  a republic consisting of 26 of 32 counties comprising the island of ireland; achieved independence from the united kingdom in 1921
3)  an important port of yemen; located on the gulf of ____; its strategic location has made it a major trading center of southern arabia since ancient times
4)  information about recent and important events

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