5. Calculate the mean and standard deviation of a distribution, and compare to a second distribution.
6. Calculate the area of a triangle, given the lengths of two sides and the included angle.
Instructional exercise consisting of questions 5 and 6 from the second paper of the 2022 SQA National 5 Mathematics examination. Where appropriate the alternative methods for solving the problem are also given. Set out in stages of 'try then check' the worked solution to each part of the question. Including indications of where each mark is allocated, and the requirements for that mark, according to the marking scheme.

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