Daily Practice · Higher

Daily Practice - Higher

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

20th August 2006

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

1
Conditional Probability3 marks
17 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
Box Plots2 marks
A box plot has a minimum of 15 and a maximum of 67. Work out the range.
3
Fractional and Negative Indices3 marks
Work out 25^(3/2).
4
Quadratic Formula3 marks
Work out the discriminant of 3x^2 + x + 3 = 0 and say how many real solutions it has.
5
Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 2, y = 6. Work out y when x = 6.

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