Part a:

Compare variation using range and standard deviation of income and expenditure of six families. Also, interpret the results.

Income (in thousands Rs.)	10	20	30	40	50	60
Expenditure (in thousands of Rs.)	7	21	23	34	36	53

Part b:

Goals scored by teams A and B in a football season are given. Use relative standard and mean deviations to find which team performed more consistently.

Goals scored	0	1	2	3	4
Number of games A played	27	9	8	5	4
Number of games B played	17	9	6	5	3

All the steps used in the answer need to be explained in detail. Thank you!