Is there a relationship between the Years spent at PLE (YearsPLE) and Education, GPA and Age?

how can I prove this with this excel file

YearsPLE	YrsEducation	College GPA	Age	Gender	College Grad
10	18	3.01	33	F	Y
10	16	2.78	25	M	Y
10	18	3.15	26	M	Y
10	18	3.86	24	F	Y
9.6	16	2.58	25	F	Y
8.5	16	2.96	23	M	Y
8.4	17	3.56	35	M	Y
8.4	16	2.64	23	M	Y
8.2	18	3.43	32	F	Y
7.9	15	2.75	34	M	N
7.6	13	2.95	28	M	N
7.5	13	2.50	23	M	N
7.5	16	2.86	24	M	Y
7.2	15	2.38	23	F	N
6.8	16	3.47	27	F	Y
6.5	16	3.10	26	M	Y
6.3	13	2.98	21	M	N
6.2	16	2.71	23	M	Y
5.9	13	2.95	20	F	N
5.8	18	3.36	25	M	Y
5.4	16	2.75	24	M	Y
5.1	17	2.48	32	M	Y
4.8	14	2.76	28	M	N
4.7	16	3.12	25	F	Y
4.5	13	2.96	23	M	N
4.3	16	2.80	25	M	Y
4	17	3.57	24	M	Y
3.9	16	3.00	26	F	Y
3.7	16	2.86	23	M	Y
3.7	15	3.19	24	M	N
3.7	16	3.50	23	F	Y
3.5	14	2.84	21	M	N
3.4	16	3.13	24	M	Y
2.5	13	1.75	22	M	N
1.8	16	2.98	25	M	Y
1.5	15	2.13	22	M	N
0.9	16	2.79	23	F	Y
0.8	18	3.15	26	M	Y
0.7	13	1.84	22	F	N
0.3	18	3.79	24	F	Y