3) 1997
X) Range=XX
Mean= X.9
XXXXXX=X
XXXX=7
X) XXXX=5.XX, XXXXXX=9, XXXX=X
7) 75
X) XX,XX,32,XX,XX
A
9) Education
XX) XXXXX=XX
Mean=13
XXXXX=X.05
11) XXXX=3.58
XXXXX= X.3
XX) COV for A=XX.XX/22.X=X.XX
XXX for X= 12/XX.X=X.XX
Hence A is XXXX volatile