Daily Practice

Higher

6th September 1965

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

1
Probability Trees3 marks
7 of 10 bulbs in a box are faulty. Two are taken with replacement. Work out the probability at least one is faulty.
2
Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 92 values. What cumulative frequency do you read across from to estimate the lower quartile?
3
Fractional and Negative Indices2 marks
Write 7^-2 as a fraction.
4
Factorising Harder Quadratics3 marks
Factorise 10x^2 - 17x + 3.
5
Repeated Percentage Change3 marks
A price rises by 15% and then falls by 15%. Work out the overall percentage change, to 2 decimal places.

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