Daily Practice · Higher

Daily Practice - Higher

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

26th June 2021

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

1
Conditional Probability3 marks
23 students study Spanish and 11 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 13, lower quartile 21, median 23, upper quartile 27 and maximum 33. Work out the interquartile range.
3
The Product Rule for Counting2 marks
A meal deal has 7 mains, 7 sides and 6 drinks. How many different meals are possible?
4
Quadratic Formula3 marks
Work out the discriminant of x^2 + 4x + 4 = 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 = 4, y = 96. Work out y when x = 9.

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