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# Q.2 Organise the following marks in a class assessment in a tabular form. 4, 6, 7, 5, 3, 5, 4, 5, 2, 6, 2, 5, 1, 9, 6, 5, 8, 4, 6, 7 (i) Which number is the highest? (ii) Which number is the lowest? (iii) What is the range of the data? (iv) Find the arithmetic mean.

(iv) Arithmetic mean= $$\frac{sum of (f)(x)}{sum of (x)}= \frac{100}{25}=5$$