Daily Practice

Higher

6th October 1973

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

1
Probability Trees3 marks
1 of 5 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 5, lower quartile 13, median 16, upper quartile 25 and maximum 30. Work out the interquartile range.
3
Surds2 marks
Write sqrt(27) in the form a sqrt(b), where b is as small as possible.
4
Equation of a Line3 marks
A line has gradient -4 and passes through (6, -27). 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 = 2.

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