Daily Practice · Higher

Daily Practice - Higher

30th January 1993

5 questions · 14 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 11, lower quartile 14, median 17, upper quartile 25 and maximum 29. Work out the interquartile range.
3
Fractional and Negative Indices3 marks
Work out 49^(3/2).
4
Equation of a Line3 marks
A line has gradient -1 and passes through (5, -1). Work out its equation.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 125. Work out y when x = 7.

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