4MA0 Foundation January 2018 Paper 1 Q14
14
(a) Write down the probability of an event that is certain to happen. (1)
Eliya has a biased dice.
The probability that the dice will land on the number 5 is 0.3
(b) Find the probability that the dice will not land on the number 5 (1)
Eliya throws the dice 150 times.
The probability that the dice will land on the number 5 is 0.3
(c) Work out an estimate for the number of times that the dice will land on the number 5 (2)
| Scheme | Marks |
|---|---|
| 1 | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| 0.7 | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| 0.3 × 150 | M1 |
| 45 | A1 |
| (2) |
Notes
M1: 0.3 × 150 oe
A1: NB An answer of \(\dfrac{45}{150}\) oe scores M1 A0