Foundation November 2017 Paper 2 Q12
12 200 people live in a village.
23 people do not have a garden.
10 males do not have a garden.
95 people are male.
(a) Use this information to complete the frequency tree.
One of the people who does not have a garden is chosen at random.
(b) Write down the probability that this person is female. (2)
| Answer | Mark | Notes |
|---|---|---|
| 23, 177 10, 13, 85, 92 | C3 | Completes all information correctly. |
| (C2 | 3 or 4 correct frequencies or all correct probabilities) | |
| (C1 | 2 correct frequencies) |
| Answer | Mark | Notes |
|---|---|---|
| \(\dfrac{13}{23}\) | M1 | ft oe for \(\dfrac{a}{23}\), \(a \lt 23\) or \(\dfrac{13}{b}\), \(b \gt 13\) |
| A1 | ft oe from (a) |