Daily Practice

Higher

8th February 1964

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

1
Probability Trees3 marks
6 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 4, lower quartile 12, median 19, upper quartile 28 and maximum 35. Work out the interquartile range.
3
Reverse Percentages3 marks
A bill is £768 including VAT at 20%. Work out the amount before VAT.
4
Factorising Harder Quadratics3 marks
Factorise 6x^2 - 17x + 12.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 175. Work out y when x = 8.

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