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Yukai Y.

Intro Stats / AP Statistics

1 week, 5 days ago

# The beaver population in a particular provincial park is known to be 452. Two hundred beavers were caught and tagged. If 65 beavers were later caught and checked for tags, how many would you expect to be tagged?

The beaver population in a particular provincial park is known to be 452. Two hundred beavers were caught and tagged. If 65 beavers were later caught and checked for tags, how many would you expect to be tagged?

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### Video Transcript

Question. We have given the following data the total number of baby birds are 452. And unfortunately too they have caught some beavers and they target them. So the number of babies that tag are 200. So now like I said to find the probability uh probability of its be able to be tagged, probability that there they were to be tagged. Are you going to ah number of babies tagged? Total number of babies. This is the problem. As you know the problem is uh total or total outcomes by favorable outcomes. So since we're calculating the probability for a be able to be tagged, the favorable outcomes is tagged number of tiger bills and total outcome is total number of the votes. So the number of babies stop is 200 and the total number of labor is 452. So this is the probability that would be able to be tired. Now in this question it is given that uh uh So They help target this 200 and again. Mix it with always so out of this for 50 to the house elected $65. And they're asking that how many babers in the 65 are tagged? Therefore wow if we select$65 million dollars from total babers then then they expected number of beavers bag. He called to. Uh huh 65. Into probability that a beaver is to be tagged. So you can see that out of six. The probability for it to be able to be tagged this. 200 By 452. uh so if we select 65 babies from the total population and we want to find a number of babies that are tagged, We simply multiply the 65 with the probability if you do that, then we get the final answer as the following. So it would become 65 in two, 200 Way 4 52. And if you do that Carlin, it is across which is equal to 28.76. So we're gonna approx with us 29. So the total number of babies that are tagged, if we select the 65 babies from Total and reverses it is 29. Thank you.

##### Boris M.

University of North Carolina at Chapel Hill

##### Lucas E.

University of St. Thomas

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