A random sample of recent repair jobs was selected and the estimated cost and actual cost were recorded.
Estimated cost |
300 |
450 |
800 |
250 |
500 |
975 |
475 |
400 |
Actual cost |
273 |
486 |
734 |
297 |
631 |
872 |
396 |
457 |
Calculate the value of spearman’s correlation coefficient.