Daily Practice · Higher

Daily Practice - Higher

1st October 1993

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

1
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 3, y = 9. Work out y when x = 14.
2
Vectors3 marks
a is the column vector (-5, 3) and b is (-2, 5). Work out 2a - 5b as a column vector.
3
Probability Trees3 marks
2 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
4
Capture Recapture2 marks
A capture-recapture estimate is made of the beetle population of a woodland. State one assumption the method relies on.
5
Fractional and Negative Indices2 marks
Write 6^-2 as a fraction.

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