1MA0 Foundation June 2016 Paper 2 Q10
10 Steve went on holiday.
He recorded the number of photos he took each day.
Here are his results.
20 14 21 19 27 31 19 19 24 21
(a) Find the mode. (1)
(b) Work out the mean. (2)
Steve saves his photos on a memory card.
The memory card has 1000 megabytes of memory space.
Each photo uses 2.4 megabytes of memory space.
Steve has saved 320 photos on the memory card.
(c) Work out how many more photos Steve can save on the memory card. (3)
| Answer | Mark | Notes |
|---|---|---|
| 19 | 1 | B1 cao |
| Answer | Mark | Notes |
|---|---|---|
| 21.5 | 2 | M1 for evidence of adding all 10 numbers and dividing by 10 eg \((20 + 14 + 21 + 19 + 27 + 31 + 19 + 19 + 24 + 21) \div 10\) or \(215 \div 10\) or \(x \div 10\) seen where \(205 \leqslant x \leqslant 225\) A1 cao |
| Answer | Mark | Notes |
|---|---|---|
| 96 | 3 | M1 for \(320 \times 2.4\) (= 768) or for \(1000 \div 2.4\) (= 416.6 or 416) M1 for \((1000 - 320 \times 2.4) \div 2.4\) or for \(1000 \div 2.4 - 320\) or an answer of 96.6(66...) or 96.7 or 97 A1 cao |