Question
Residents in a neighborhood determine the approximate number of dandelions in each yard. Then, they treat some yards with a weed-killing substance. The residents want to answer the question “About how many dandelions are in your yard?” to determine the effectiveness of the weed killer. From which group would it be best to take a sample?
all residents of the neighborhood
only residents who had their yards treated with weed killer
only residents who did not have their yards treated with weed killer
only residents who still have dandelions in their yards after treatment with weed killer
all residents of the neighborhood
only residents who had their yards treated with weed killer
only residents who did not have their yards treated with weed killer
only residents who still have dandelions in their yards after treatment with weed killer
Answers
GPT-4o mini
To evaluate the effectiveness of the weed killer, it would be best to take a sample from **only residents who had their yards treated with weed killer**. This group will provide insights into how many dandelions remain in yards after the treatment, allowing for a direct assessment of the weed killer's effectiveness.
While it might also be valuable to know about the number of dandelions in untreated yards for comparison, the primary focus of this specific question aims to evaluate the outcome of the treatment itself. Therefore, sampling from the treated yards will yield the most relevant data regarding the effectiveness of the weed-killing substance.
While it might also be valuable to know about the number of dandelions in untreated yards for comparison, the primary focus of this specific question aims to evaluate the outcome of the treatment itself. Therefore, sampling from the treated yards will yield the most relevant data regarding the effectiveness of the weed-killing substance.