Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Probability Trees3 marks
8 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 2Box Plots2 marks
A box plot has minimum 9, lower quartile 14, median 23, upper quartile 27 and maximum 31. Work out the interquartile range.
- 3The Product Rule for Counting2 marks
A meal deal has 6 mains, 8 sides and 2 drinks. How many different meals are possible?
- 4Trigonometric and Exponential Graphs2 marks
The curve y = 2^x is drawn. Work out y when x = 4, and write down where the curve crosses the y-axis.
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 24. Work out y when x = 3.
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