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 $x$.

Mathematics 9709/62 — February/March 2017

Cambridge A-Level · Probability & Statistics 1 · worked solutions for every part, with the mark scheme

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Topics Discrete Random Variables · The Normal Distribution · Representation of Data · Probability · Permutations and Combinations

Q14MRepresentation of DataFree sample

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 $x$ .

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