9709 P62 - Mar 2017 - Q1
2515
Twelve values of x are shown below.
1761.6, 1758.5, 1762.3, 1761.4, 1759.4, 1759.1, 1762.5, 1761.9, 1762.4, 1761.9, 1762.8, 1761.0
Find the mean and standard deviation of \((x - 1760)\). Hence find the mean and standard deviation of \(x\).
