Daily Practice
Higher Plus
← All tiers
13th November 1968
- 1Conditional Probability3 marks
A bag holds 4 red and 6 blue counters. Two are taken without replacement. Given the first was red, what is the probability the second is blue?
- 2Histograms3 marks
On a histogram the bar for 40 < x <= 50 has a frequency density of 0.4. How many values are in that class?
- 3Bounds3 marks
A rectangle is 6 cm by 18 cm, each correct to the nearest cm. Work out the upper bound of its area.
- 4Quadratic Inequalities3 marks
Solve x^2 + 2x - 8 > 0.
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^3. When x = 2, y = 32. Work out y when x = 3.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of November 1968, including the monthly compilation PDF.