Daily Practice · Higher

Daily Practice - Higher

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

17th January 2015

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

1
Conditional Probability3 marks
20 students study Spanish and 12 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 7, lower quartile 9, median 17, upper quartile 22 and maximum 28. Work out the interquartile range.
3
Recurring Decimals to Fractions3 marks
Write the recurring decimal 0.8282... as a fraction in its simplest form.
4
Quadratic Formula3 marks
Work out the discriminant of 4x^2 - 4x + 5 = 0 and say how many real solutions it has.
5
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 288. Work out y when x = 3.

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