Daily Practice

Higher

12th March 1983

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

1
Probability Trees3 marks
4 of 6 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 13, lower quartile 17, median 25, upper quartile 30 and maximum 38. Work out the interquartile range.
3
Bounds2 marks
A mass is 77 kg, correct to the nearest whole number. Write down the upper bound.
4
Trigonometric and Exponential Graphs2 marks
The curve y = 5^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 = 3, y = 81. Work out y when x = 5.

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