1.The following are marks obtained by a student in Kenyatta University for 11 subjects within two academic years:

Academic year	1	2	3	4	5	6	7	8	9	10	11
Year 1	25	10	15	35	45	15	20	30	40	45	55
Year 2	12	8	10	11	13	8	10	11	13	14	10

Compute the Pearson's correlation coefficient between year 1 and year 2, as well as the goodness of fit. Interpret your answers.

2. Two series X and Y are presented below:

Series X	62	72	78	58	65	70	66	63	60	72
Series Y	50	65	63	50	54	60	61	55	54	65

Compute the Pearson's correlation coefficient between X and Y, as well as the goodness of fit. Interpret your answers.1.The following are marks obtained by a student in Kenyatta University for 11 subjects within two academic years:

Academic year	1	2	3	4	5	6	7	8	9	10	11
Year 1	25	10	15	35	45	15	20	30	40	45	55
Year 2	12	8	10	11	13	8	10	11	13	14	10

Compute the Pearson's correlation coefficient between year 1 and year 2, as well as the goodness of fit. Interpret your answers.

2. Two series X and Y are presented below:

Series X	62	72	78	58	65	70	66	63	60	72
Series Y	50	65	63	50	54	60	61	55	54	65

Compute the Pearson's correlation coefficient between X and Y, as well as the goodness of fit. Interpret your answers.