Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
28th November 2020
- 1Probability Trees3 marks
3 of 5 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 2, lower quartile 4, median 7, upper quartile 17 and maximum 27. Work out the interquartile range.
- 3Fractional and Negative Indices3 marks
Work out 36^(3/2).
- 4Trigonometric and Exponential Graphs2 marks
The curve y = 4^x is drawn. Work out y when x = 5, 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 = 6, y = 288. Work out y when x = 5.
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