Variation of employee salaries

Question

Question: Beta Technologies, Inc., is trying to determine the variable that best explain the variation of employee salaries using a simple of 52 full time employees illustrated below. I need to identify which of the following has the strongest linear relationship with annual salary: the employee's gender, age, number of years of relevant work experience prior to employment at Beta, number of years of employment at Beta, or number of years of postsecondary education. provide support for your conclusion.

Beta Technologies, Inc. Employee Salary Structure

Gender	Age	Prior_Experience	Beta_Experience	Education	Annual_Salary
1	39	5	12	4	$38,450
0	44	12	8	6	$50,912
0	24	0	2	4	$29,356
1	25	2	1	4	$27,750
0	56	5	25	8	$109,285
1	41	9	10	4	$48,442
1	33	6	2	6	$40,207
0	37	11	6	4	$42,331
1	51	12	16	6	$87,489
0	23	0	1	4	$26,118
0	31	5	4	6	$41,956
1	27	0	8	0	$17,439
0	47	11	9	4	$49,638
1	35	5	5	6	$43,184
1	29	5	4	0	$14,371
0	46	4	15	6	$54,613
1	50	10	17	4	$76,927
0	30	3	6	4	$38,556
1	34	10	1	4	$37,183
1	42	11	8	4	$50,712
1	51	10	15	8	$90,473
0	63	16	20	4	$93,588
0	28	0	5	4	$36,901
1	32	4	1	4	$33,100
0	55	11	16	6	$89,867
1	45	20	2	4	$51,259
0	34	2	12	2	$19,106
0	33	2	7	4	$39,224
1	23	0	1	4	$28,743
0	40	4	13	6	$54,965
1	48	6	15	4	$53,388
1	27	0	6	0	$18,014
1	36	5	5	6	$39,205
0	58	9	22	4	$88,763
0	31	1	1	6	$35,829
1	21	0	1	2	$17,784
0	47	5	16	4	$54,199
1	35	3	7	4	$36,932
1	52	12	14	8	$93,278
0	29	3	3	2	$22,100
1	42	11	7	4	$49,987
0	60	10	21	4	$85,471
1	50	8	13	4	$51,194
1	33	1	2	6	$36,109
0	26	0	5	2	$21,750
0	38	6	6	6	$39,455
1	44	7	12	4	$49,861
0	25	0	3	4	$30,327
1	37	8	5	4	$31,008
0	53	13	13	6	$90,874
0	46	7	18	4	$57,966
1	20	0	1	0	$15,945