A scientist studies the migration behavior of a population of 500,000 arctic ter

Question

A scientist studies the migration behavior of a population of 500,000 arctic term (a bird relative to the Antarctic). She tags 200 birds and tracks their flight, the birds fly more than 15,000 miles in one year. The scientist can use this (blank A) to estimate that blank B) arctic terns fly more than 15,000 miles in one year. Select two answer choices. Select the value that that correctly files in which corresponding blank in the previous sentence. blank A: population blank B: 100,000 blank A: experiment blank A: statistic blank B: 40,000 blank B: 15,000 blank B: 4000

Explanation / Answer

Scientist studies the behaviour of arctic terns. And studied about their flying speed etc to comment on their whole group.

First she considered only 200.

For out of 200, 40 birds fly more than 15000 miles in one year. From this she can say that 20% of group of birds can fly more than 15000 miles per year.

So that from out of 500,000 there is 20%(500,000)=

=(20/100)*500,000=100,000 arctic terns can fly more than 15000 miles in one year.

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