Daily Practice

Higher

9th September 1961

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

1
Conditional Probability3 marks
21 students study Spanish and 7 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 1, lower quartile 7, median 9, upper quartile 12 and maximum 19. Work out the interquartile range.
3
Bounds2 marks
A mass is 7.4 kg, correct to 1 decimal place. Write down the lower bound.
4
Quadratic Formula3 marks
Use the quadratic formula to solve x^2 + 3x - 4 = 0, to 2 decimal places.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 150. Work out y when x = 7.

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