Daily Practice - Higher

14 students study Spanish and 10 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.

A box plot has minimum 6, lower quartile 11, median 20, upper quartile 27 and maximum 29. Work out the interquartile range.

Write the recurring decimal 0.2222... as a fraction in its simplest form.

For the curve y = x² - 8x - 12, work out y when x = -4.For the curve y = x^2 - 8x - 12, work out y when x = -4.

y is directly proportional to x². When x = 5, y = 200. Work out y when x = 7.y is directly proportional to x^2. When x = 5, y = 200. Work out y when x = 7.