Daily Practice · Higher

Daily Practice - Higher

23rd April 1992

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

1
Conditional Probability3 marks
15 students study Spanish and 5 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Histograms2 marks
A histogram class is 10 units wide and contains 5 values. Work out the frequency density.
3
The Product Rule for Counting3 marks
A code is 2 letters (A to Z) followed by 3 digits (0 to 9), and repeats are allowed. How many codes are possible?
4
Quadratic Formula3 marks
Use the quadratic formula to solve 2x^2 - 11x - 10 = 0, to 2 decimal places.
5
Repeated Percentage Change3 marks
A town's population is 12500 and grows by 5% each year. Work out the population after 3 years, to the nearest whole number.

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