Daily Practice · Higher

Daily Practice - Higher

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

3rd February 2006

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Probability Trees3 marks
1 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Capture Recapture2 marks
A capture-recapture estimate is made of the moth population of a meadow. State one assumption the method relies on.
3
Fractional and Negative Indices3 marks
Work out 125^(2/3).
4
Equation of a Line3 marks
A line has gradient -1 and passes through (4, -10). Work out its equation.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 4, y = 8. Work out y when x = 14.

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