Daily Practice

Higher

14th May 1955

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

1
Probability Trees3 marks
4 of 7 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 8, lower quartile 11, median 21, upper quartile 31 and maximum 40. Work out the interquartile range.
3
Bounds2 marks
A mass is 360 kg, correct to the nearest 10. Write down the lower bound.
4
Equation of a Line3 marks
A line has gradient -3 and passes through (2, -14). Work out its equation.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 24. Work out y when x = 3.

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