Daily Practice
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30th July 1978
- 1Conditional Probability3 marks
13 students study Spanish and 6 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 a minimum of 6 and a maximum of 33. Work out the range.
- 3The Product Rule for Counting3 marks
A code is 2 letters (A to Z) followed by 3 digits (0 to 9), and repeats are allowed. How many codes are possible?
- 4Solving Quadratics3 marks
Solve x^2 - 14x + 48 = 0.
- 5Direct and Inverse Proportion3 marks
y is inversely proportional to x. When x = 5, y = 18. Work out y when x = 6.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of July 1978, including the monthly compilation PDF.