Daily Practice

Higher

26th November 1977

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Probability Trees3 marks
1 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Box Plots2 marks
A box plot has minimum 13, lower quartile 19, median 25, upper quartile 29 and maximum 38. Work out the interquartile range.
3
Fractional and Negative Indices3 marks
Work out 16^(3/2).
4
Factorising Harder Quadratics3 marks
Factorise 2x^2 - 7x + 6.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 288. Work out y when x = 3.

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