Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

1st February 2003

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

1
Conditional Probability3 marks
15 students study Spanish and 6 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
2
Box Plots2 marks
A box plot has minimum 12, lower quartile 17, median 25, upper quartile 34 and maximum 43. Work out the interquartile range.
3
Fractional and Negative Indices2 marks
Write 7^-1 as a fraction.
4
Quadratic Formula3 marks
Use the quadratic formula to solve 4x^2 - 11x - 2 = 0, to 2 decimal places.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 5, y = 225. Work out y when x = 8.

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