Daily Practice

Higher

25th June 1988

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

1
Probability Trees3 marks
1 of 9 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 8, median 17, upper quartile 27 and maximum 31. Work out the interquartile range.
3
Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.7474... as a fraction in its simplest form.
4
Equation of a Line3 marks
A line has gradient -2 and passes through (6, -16). Work out its equation.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 3, y = 81. Work out y when x = 8.

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