You are the owner of a camping site that has a small pond with fish, and you want to know approximately how many fish are currently in the pond.For this purpose, you catch 30 fish and mark them with a special ink that will take a few days to be washed away.The ink doesn't affect the fish in any way.The fish are returned promptly to the pond after being marked.The next day at the same time of day you return and catch 30 fish, and you find out that 5 of these fish are marked.
A)This is an example of descriptive statistics, because you are describing the number of fish in the pond.
B)This is not an example of statistics.
C)This is an example of inferential statistics, because you will use the catch on the second day to infer the population of fish.
D)This is an example of descriptive statistics as the goal was to determine the proportion marked out of the 30 caught the second day.
E)This procedure would not allow you to estimate the population of fishes.

Question

Quizplus · Accepted Answer

This method is a classic example of using a sample to make inferences about a larger population, which is the essence of inferential statistics. By marking a known number of fish and then seeing what proportion of the next catch is marked, you can estimate the total population of fish in the pond.

You Are the Owner of a Camping Site That Has