Daily Practice · Higher

Daily Practice - Higher

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

20th October 2007

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

1
Probability Trees3 marks
1 of 5 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 12, lower quartile 18, median 20, upper quartile 23 and maximum 32. Work out the interquartile range.
3
Standard Form2 marks
Work out (3 x 10^5) x (2 x 10^-6). Give your answer in standard form.
4
Equation of a Line3 marks
A line has gradient 1 and passes through (6, 11). Work out its equation.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 80. Work out y when x = 8.

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