Daily Practice

Higher

25th March 1972

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 = 27. Work out y when x = 6.
2
Finding the Area of Any Triangle3 marks
A triangle has sides of 11 cm and 15 cm with an angle of 33° between them. Work out its area, to 1 decimal place.
3
Probability Trees3 marks
2 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 9, lower quartile 19, median 25, upper quartile 33 and maximum 41. Work out the interquartile range.
5
Bounds2 marks
A mass is 250 kg, correct to the nearest 10. Write down the lower bound.

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