Daily Practice

Higher

2nd October 1970

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 = 8, y = 96. Work out y when x = 13.
2
Vectors3 marks
a is the column vector (-2, 5) and b is (0, 0). Work out 2a - 2b as a column vector.
3
Probability Trees3 marks
2 of 5 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 newt population of a stream. State one assumption the method relies on.
5
Surds2 marks
Write sqrt(98) in the form a sqrt(b), where b is as small as possible.

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