Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Probability Trees3 marks
1 of 9 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 2Capture Recapture2 marks
A capture-recapture estimate is made of the fish population of a pond. State one assumption the method relies on.
- 3The Product Rule for Counting2 marks
A meal deal has 7 mains, 5 sides and 4 drinks. How many different meals are possible?
- 4Trigonometric and Exponential Graphs2 marks
The curve y = 5^x is drawn. Work out y when x = 5, and write down where the curve crosses the y-axis.
- 5Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 4, y = 28. Work out y when x = 3.
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