The weight of 10 pupils in a class are 15 kg, 16 kg, 17 kg, 18 kg, 16 kg, 17 kg, 17 kg, 17 kg, 18 kg, and 16 kg. What is the range of this distribution?

Find the midpoint of the line joining P(-3, 5) and Q(5, -3).

The graph above shows the cumulative frequency curve of the distribution of marks in a class test. What percentage of the students scored more than 20 marks?

Find the value of α2 + β2 if α + β = 2 and the distance between points (1, α) and (β, 1)is 3 units

Determine the locus of a point inside a square PQRS which is eqidistant from PQ and QR

The sum of the interior angles of a pentagon is 6x + 6y. Find y in the terms of x

The shaded region in the Venn diagram above is

In the diagram above, PQ = 4 cm and TS = 6 cm. If the area of parallelogram PQTU is 32 cm2, find the area of the trapezium PQRU

Find the value of x in the figure above