Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

20th September 2008

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

1
Probability Trees3 marks
5 of 7 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 2, lower quartile 7, median 11, upper quartile 13 and maximum 21. Work out the interquartile range.
3
Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.7575... as a fraction in its simplest form.
4
Equation of a Line3 marks
A line has gradient -5 and passes through (2, -6). Work out its equation.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 20. Work out y when x = 8.

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