Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Probability Trees3 marks
1 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 2Histograms2 marks
A histogram class is 20 units wide and contains 80 values. Work out the frequency density.
- 3Bounds2 marks
A mass is 26.9 kg, correct to 1 decimal place. Write down the upper bound.
- 4Trigonometric and Exponential Graphs2 marks
The curve y = 5^x is drawn. Work out y when x = 4, and write down where the curve crosses the y-axis.
- 5Repeated Percentage Change3 marks
A town's population is 32000 and grows by 6% each year. Work out the population after 3 years, to the nearest whole number.
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