4MA0 Foundation June 2013 Paper 2 Q16
16 A box contains four different kinds of chocolates.
Debbie takes at random a chocolate from the box.
The table shows the probability of Debbie taking an Orange or a Coffee or a Caramel chocolate.
| Chocolate | Probability |
|---|---|
| Orange | 0.15 |
| Coffee | 0.40 |
| Caramel | 0.35 |
| Strawberry |
(a) Work out the probability that Debbie takes a Strawberry chocolate. (2)
(b) Work out the probability that Debbie takes an Orange chocolate or a Coffee chocolate. (2)
| Scheme | Marks |
|---|---|
| \(1 - (0.15 + 0.4 + 0.35)\) | M1 |
| 0.1 | A1 |
| (2) |
| Scheme | Marks |
|---|---|
| \(0.15 + 0.4\) | M1 |
| 0.55 | A1 |
| (2) |