Daily Practice

Higher

27th January 1973

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

1
Probability Trees3 marks
6 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 15, lower quartile 22, median 28, upper quartile 35 and maximum 42. Work out the interquartile range.
3
Bounds2 marks
A mass is 390 kg, correct to the nearest 10. Write down the lower bound.
4
Trigonometric and Exponential Graphs2 marks
The curve y = 6^x is drawn. Work out y when x = 3, 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 = 5, y = 75. Work out y when x = 8.

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