Daily Practice

Higher

12th March 1976

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

1
Probability Trees3 marks
5 of 9 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
Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.9393... as a fraction in its simplest form.
4
Factorising Harder Quadratics3 marks
Factorise 2x^2 + 5x - 25.
5
Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 6, y = 36. Work out y when x = 9.

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