Observations for the past 10 years of withdrawals and estimated recharge of an artesian aquifer are given in the following table. Find the means, variances, standard deviations, covariance, and correlation coefficient.
Measured discharge (1000 acre-ft) | Estimated recharge (1000 acre-ft) |
12.2 | 12.0 |
10.4 | 9.8 |
10.6 | 11.0 |
12.6 | 13.2 |
14.2 | 14.6 |
13.0 | 14.0 |
14.0 | 14.0 |
12.0 | 12.4 |
10.4 | 10.4 |
11.4 | 11.6 |
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