To estimate the size of the grizzly bear population in a national park, rangers tagged and released 12 grizzly bears into the pa
rk. A few months later, 2 out of 21 grizzly bears sighted were tagged. Assuming the population of tagged bears in the population, estimate the number of grizzly bears in the population of this national park. a. 24 grizzly bears
b. 126 grizzly bears
c. 252 grizzly bears
d. 22 grizzly bears
2 out of the 21 bears had tags, which is about the same as 1 out of 10. So, there is approximately 10 bears for every 1 tagged bear. Multiply the number of tagged bears (12) times 10 and you get around 120 bears. So the answer has to be...B) 126
To find the area of a triangle, you multiply the base (10cm) and height of the triangle (3cm) and divide that by 2. So 10×3=30. Then, you need to divide this by 2. Since 30 is an even number, you won't get a decimal. So 30/2=15. And dont forget your units!
