Daily Practice

Higher

20th December 1969

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Conditional Probability3 marks
27 students study Spanish and 8 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Box Plots2 marks
A box plot has minimum 12, lower quartile 21, median 27, upper quartile 36 and maximum 42. Work out the interquartile range.
3
Surds2 marks
Write sqrt(18) in the form a sqrt(b), where b is as small as possible.
4
Quadratic Formula3 marks
Use the quadratic formula to solve 3x^2 + x - 10 = 0, to 2 decimal places.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 175. Work out y when x = 7.

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