formative computation part 6

X2	X3
54	60
70	78		X2 = CHEMISTRY
42	50		X3 = MATHEMATIC
72	80
72	80
86	94			X2	X3
72	78		X2	1
88	98		X3	0.976299	1
66	76
72	80
82	98
64	76
86	100
84	92
68	76
70	78
70	78
62	72
72	80
76	84
72	80
82	98
64	76
86	100
84	92
68	76
70	78
70	78
62	72
72	80