Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
22nd June 2024
- 1Conditional Probability3 marks
19 students study Spanish and 11 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
- 2Box Plots2 marks
A box plot has minimum 9, lower quartile 17, median 23, upper quartile 25 and maximum 33. Work out the interquartile range.
- 3The Product Rule for Counting3 marks
A code is 3 letters (A to Z) followed by 4 digits (0 to 9), and repeats are allowed. How many codes are possible?
- 4Inequalities on Graphs3 marks
Does the point (2, 9) satisfy y > -x + 3?
- 5Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 28. Work out y when x = 3.
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