Daily Practice · Higher

Daily Practice - Higher

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

15th March 2003

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

1
Probability Trees3 marks
4 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 12, lower quartile 21, median 29, upper quartile 37 and maximum 44. Work out the interquartile range.
3
Fractional and Negative Indices3 marks
Work out 16^(3/2).
4
Equation of a Line3 marks
A line has gradient -3 and passes through (6, -26). Work out its equation.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 200. Work out y when x = 4.

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