Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
11th February 2025
- 1Probability Trees3 marks
7 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 2Capture Recapture3 marks
35 fish are marked and released. Later 77 are caught, of which 7 are marked. Estimate the population.
- 3Bounds2 marks
A mass is 49 kg, correct to the nearest whole number. Write down the lower bound.
- 4Trigonometric and Exponential Graphs2 marks
The curve y = 4^x is drawn. Work out y when x = 1, and write down where the curve crosses the y-axis.
- 5Writing a Ratio as a Fraction or Linear Function2 marks
x : y = 5 : 6. Write y in terms of x.
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