Daily Practice · Higher

Daily Practice - Higher

1st January 1994

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

1
Probability Trees3 marks
3 of 5 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 2, lower quartile 9, median 12, upper quartile 15 and maximum 20. Work out the interquartile range.
3
Surds2 marks
Write sqrt(98) in the form a sqrt(b), where b is as small as possible.
4
Equation of a Line3 marks
A line has gradient -1 and passes through (3, -1). Work out its equation.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 128. Work out y when x = 6.

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