Daily Practice · Higher

Daily Practice - Higher

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

7th June 2003

5 questions · 12 marks · Grades 6-7 · 61 question types in this band

1
Probability Trees3 marks
3 of 10 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 6, lower quartile 15, median 20, upper quartile 24 and maximum 33. Work out the interquartile range.
3
Bounds2 marks
A mass is 3.7 kg, correct to 1 decimal place. Write down the lower bound.
4
Trigonometric 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.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 288. Work out y when x = 2.

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