To determine the percentage of students who own a bird as a pet based on the two samples, you need to calculate the proportion of students who own a bird in each sample and then find the average of those proportions.
First, let's calculate the proportion of students who own a bird in each sample:
In Sample 1, the number of students who own a bird is 8 out of a total of 100 students. Therefore, the proportion of students who own a bird in Sample 1 is 8/100 = 0.08.
In Sample 2, the number of students who own a bird is 12 out of a total of 100 students. Therefore, the proportion of students who own a bird in Sample 2 is 12/100 = 0.12.
Next, let's find the average of these proportions:
Average proportion = (proportion in Sample 1 + proportion in Sample 2) / 2
= (0.08 + 0.12) / 2
= 0.2 / 2
= 0.1
Finally, to get the percentage, we multiply the average proportion by 100:
Percentage of students who own a bird = Average proportion * 100
= 0.1 * 100
= 10
Therefore, based on the two samples, approximately 10% of the students own a bird as a pet.