Marcio works in a company that encourages safe work practices by offering rewards. Fifteen employees qualified this month and th
ree will be selected to receive free tickets to a soccer game. The fifteen employees are composed of ten men and five women. All their names are placed in a sack. Three names will be drawn. Which statements are true about this sample of three names? Men Women
In Bag 10 names 5 names
1. A simple random sample could consist of three women's names.
2. The sample would have two men and one woman since there are twice as many men as women who qualify the reward.
3. A simple random sample could consist of three men's names.
4. This is an example of a simple random sample
5. This is an example of a convenience sample.
Explanation: To solve this proportion for z, we can use cross products.
When we get the equation 5z = 350, we can get z by itself on the left side of the equation by dividing both sides of the equation by 5. On the left, the 5's cancel each other out and we have z. On the right, 350 divided by 5 simplifies to 70 so we have z = 70.
