Daily Practice
Higher
- 1Probability Trees3 marks
2 of 7 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
- 2Capture Recapture2 marks
A capture-recapture estimate is made of the moth population of a meadow. State one assumption the method relies on.
- 3Surds2 marks
Write sqrt(18) in the form a sqrt(b), where b is as small as possible.
- 4Equation of a Line3 marks
A line has gradient 3 and passes through (2, 0). Work out its equation.
- 5Direct and Inverse Proportion3 marks
y is directly proportional to x. When x = 7, y = 35. Work out y when x = 10.
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