code	2/18	3/9	4/13	5/4	t ave	final	grade
----	-----	-----	-----	-----	-----	-----	-----
also	62	49			37	0	F
back	58		36		31.3	0	F
boat	97	94	90	99	96.7	52	A
book	100	97	62	75	90.7	43	B
cell	77	64	85	80	80.7	51	C
city	62	27	27		38.7	12	F
data	96	96	92	96	96	53	B
each	83	89	61	39	77.7	46	C
foot	56	23	67	87	70	43	D
form	100	95	76	83	92.7	50	B
gate	96	89	74	69	86.3	0	F
half	67	47	63	66	65.3	40	D
inch	84	71	63	46	72.7	39	D
know	103	96		80	93	56	B
lamp	81	97	42	59	79	33	D
more	62	36	33		43.7	0	F
only	85	52	70	35	69	49	C
path	71	86	53	39	70	37	D
plan	80	82	49	76	79.3	38	B
plus	92	99	101	92	97.3	56	B
pool	92	91	98	78	93.7	46	B
rain		42	17	42	33.7	26	F
rest	77	33		47	52.3	19	F
shed	83	86	79	83	84	48	B
show	64	78	69	77	76.7	35	D
sign	65	64	68	66	66.3	28	D
spot	95	76	83	93	90.3	52	B
star	58		56	43	54.8	40	D
unit	59	56	53	45	56	24	F
wave	99	98	89		95.3	47	B
with	55		66		40.3	0	F
word	72	54	65	50	63.7	42	C