Daily Practice

Higher

9th April 1983

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

1
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 112. Work out y when x = 3.
2
Finding the Area of Any Triangle3 marks
A triangle has sides of 12 cm and 5 cm with an angle of 51° between them. Work out its area, to 1 decimal place.
3
Probability Trees3 marks
7 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Box Plots2 marks
A box plot has minimum 13, lower quartile 19, median 22, upper quartile 30 and maximum 33. Work out the interquartile range.
5
Fractional and Negative Indices2 marks
Write 8^-1 as a fraction.

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