Daily Practice

Higher

23rd October 1971

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

1
Conditional Probability3 marks
16 students study Spanish and 4 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 15, lower quartile 19, median 21, upper quartile 30 and maximum 32. Work out the interquartile range.
3
Bounds2 marks
A mass is 15.5 kg, correct to 1 decimal place. Write down the upper bound.
4
Quadratic Formula3 marks
Use the quadratic formula to solve 4x^2 - 2x - 8 = 0, to 2 decimal places.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 3, y = 18. Work out y when x = 5.

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