Foundation November 2022 Paper 3 Q8
8 Put these probabilities in order, starting with the least likely. [2 marks]
\[72\% \qquad 0.705 \qquad \dfrac{7}{10}\]| Answer | Mark | Comments |
|---|---|---|
| \(\dfrac{7}{10}\), 0.705, 72% with no incorrect conversions | B2 | accept in any format eg 0.7, 0.705, 0.72 B1 correctly converts at least one to a different form which shows at least two in comparable form eg 0.72 or 70.5(%) or 0.7 or 70(%) or \(\dfrac{72}{100}\) and \(\dfrac{70}{100}\) |
Additional guidance
| Condone missing percentage signs | |
| Examples of probabilities in the same comparable form 70(%), 70.5(%), (72%) 0.7(00), (0.705), 0.72(0) \(\left(\dfrac{7}{10}\right), \dfrac{7.05}{10}, \dfrac{7.2}{10}\) or \(\dfrac{70}{100}, \dfrac{70.5}{100}, \dfrac{72}{100}\) or \(\dfrac{700}{1000}, \dfrac{705}{1000}, \dfrac{720}{1000}\) | |
| \(\dfrac{7}{10}\), 0.705, 72(%) with no working | B2 |
| Award B2 with no incorrect conversions eg1 Answer \(\dfrac{7}{10}\), 0.705, 72(%) with \(\dfrac{28}{40}\) and \(\dfrac{70.5}{100}\) eg2 Answer \(\dfrac{7}{10}, \dfrac{705}{1000}, \dfrac{72}{100}\) with no incorrect conversions | B2 |
| Do not award B2 with an incorrect conversion eg \(\dfrac{7}{10}\), 0.705, 72(%) with 70(%) and 70.05(%) | B1 |
| \(\dfrac{72}{100}\) and \(\dfrac{705}{1000}\) and \(\dfrac{7}{10}\) in working (not comparable conversions) | B0 |
| \(\dfrac{141}{200}\) alone without \(\dfrac{140}{200}\) or \(\dfrac{144}{200}\) | B0 |