Compute the z-scores for each observation and variable for the "Engines" data. Provide these as new columns in the data table.

the values of the table are:

1	0.50	5.01	1.28
2	0.65	14.67	0.21
3	0.46	8.60	1.17
4	0.41	4.42	1.31
5	0.41	4.95	1.16
6	0.39	7.24	1.45
7	0.44	7.51	1.08
8	0.55	12.30	1.22
9	0.72	14.59	0.60
10	0.64	7.98	1.32
11	0.83	11.53	1.32
12	0.38	4.10	1.47
13	0.38	5.21	1.24
14	0.50	12.10	1.44
15	0.60	9.62	0.71
16	0.73	14.97	0.51
17	0.83	15.13	0.49
18	0.57	5.04	1.49
19	0.34	3.95	1.38
20	0.41	3.38	1.33
21	0.37	4.12	1.20
22	1.02	23.53	0.86
23	0.87	19.00	0.78
24	0.70	22.92	0.57
25	0.65	11.20	0.95
26	0.43	3.81	1.79
27	0.48	3.45	2.20
28	0.41	1.85	2.27
29	0.51	4.10	1.78
30	0.41	2.26	1.87
31	0.47	4.74	1.83
32	0.52	4.29	2.94
33	0.56	5.36	1.26
34	0.70	14.83	1.16
35	0.51	5.69	1.73
36	0.52	6.35	1.45
37	0.57	6.02	1.31
38	0.51	5.79	1.51
39	0.36	2.03	1.80
40	0.48	4.62	1.47
41	0.52	6.78	1.15
42	0.61	8.43	1.06
43	0.58	6.02	0.97
44	0.46	3.99	2.01
45	0.47	5.22	1.12
46	0.55	7.47	1.39