Higher November 2023 Paper 2 Q12
12 Here is some information about the members of a basketball club.
| Number of members | Mean height of members | |
|---|---|---|
| Junior | 30 | 1.6 m |
| Senior | 20 | 2.05 m |
Work out the mean height of all 50 members of the club.
Give your answer as a decimal. [3 marks]
| Answer | Mark | Comments |
|---|---|---|
| \(30 \times 1.6\) or 48 or \(20 \times 2.05\) or 41 | M1 | oe |
| \(\dfrac{30 \times 1.6 + 20 \times 2.05}{30 + 20}\) or \(\dfrac{89}{50}\) | M1dep | oe |
| 1.78 | A1 | allow 1.8 with M2 seen |
Additional guidance
| The first M1 may be awarded for correct work with no answer or incorrect answer, even if this is seen amongst multiple attempts | |
| Answer only 1.8 | M0M0A0 |