Two students collect information about the number of dandelions in a park. Based on their sampling, they estimate that there are 900 dandelions in the 300-square-meter city park. To determine the accuracy of their estimate, which of the following questions is necessary?
A. What was the range of sizes among the sampled dandelions?
B. How many samples were taken to determine the estimate?
C. What time of day was the sampling conducted?
D. Were the dandelions distributed only in grassy areas?
I think it is D.
Probably not D.
the answer is B
To determine the accuracy of the estimate that there are 900 dandelions in the 300-square-meter park, the necessary question to ask is:
B. How many samples were taken to determine the estimate?
By finding out the number of samples taken, we can assess the representativeness of the sample size compared to the entire park area. If only a few samples were taken, it may not provide an accurate estimation of the number of dandelions in the entire park. On the other hand, if a large number of samples were taken, it increases the likelihood of a more accurate estimation.
Therefore, option B is the key question to determine the accuracy of the estimate.