Daily Practice

Higher

4th November 1964

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

1
Conditional Probability3 marks
16 students study Spanish and 3 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Cumulative Frequency2 marks
Four classes in order have frequencies 12, 10, 10, 12. Write down the cumulative frequency at the end of the third class.
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
Work out the discriminant of 3x^2 + 6x + 6 = 0 and say how many real solutions it has.
5
Speed and Density2 marks
A block has volume 190 cm^3 and density 4 g/cm^3. Work out its mass.

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