From the diagram, the risk for a female who has never smoked is 0.3%.
To find the number out of 1000, we calculate 0.3% of 1000.
0.3% = 0.3 / 100 = 0.003
Number of women = 0.003 * 1000 = 3.
So, 3 women out of every 1000 are expected to get lung cancer.
The question asks to calculate the expected number of women with lung cancer out of a group of 1000, based on a given risk percentage.
1. From the diagram, under the "Never smoked" category, the risk for a female is 0.3%.
2. This percentage means 0.3 people per 100.
3. To find the number per 1000, we can set up a proportion or simply multiply. Since 1000 is 10 times larger than 100, the number of people will also be 10 times larger.
Number = 0.3 * 10 = 3.
4. Alternatively, convert the percentage to a decimal (0.3% = 0.003) and multiply by the total number of people (1000).
Number = 0.003 × 1000 = 3.
So, 3 women are expected to get lung cancer.