Daily Practice

Higher

8th May 1982

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 = 3, y = 45. Work out y when x = 7.
2
Finding the Area of Any Triangle3 marks
A triangle has sides of 14 cm and 7 cm with an angle of 25° between them. Work out its area, to 1 decimal place.
3
Probability Trees3 marks
3 of 10 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 8, lower quartile 13, median 17, upper quartile 21 and maximum 29. Work out the interquartile range.
5
Bounds2 marks
A mass is 16.2 kg, correct to 1 decimal place. Write down the upper bound.

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