Daily Practice

Higher

13th August 1983

5 questions · 12 marks · Grades 6-7 · 61 question types in this band

1
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 80. Work out y when x = 6.
2
Perpendicular Lines and the equation of a tangent2 marks
A line has gradient 4. Work out the gradient of a line perpendicular to it.
3
Conditional Probability3 marks
17 students study Spanish and 10 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
4
Box Plots2 marks
A box plot has minimum 3, lower quartile 9, median 17, upper quartile 25 and maximum 27. Work out the interquartile range.
5
Bounds2 marks
A mass is 20.4 kg, correct to 1 decimal place. Write down the lower bound.

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