Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

14th November 2009

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Probability Trees3 marks
3 of 8 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Box Plots2 marks
A box plot has minimum 7, lower quartile 14, median 24, upper quartile 26 and maximum 33. Work out the interquartile range.
3
Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.777... as a fraction in its simplest form.
4
Trigonometric and Exponential Graphs2 marks
The curve y = 6^x is drawn. Work out y when x = 1, and write down where the curve crosses the y-axis.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 16. Work out y when x = 4.

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