Kyle takes a sample of 300 students from his school. The proportion of junior students in his sample is the same as the proportion of junior students in the whole school.

Question

The table below shows the numbers of junior students and senior students in the whole school.
How many junior students are in Kyle's sample?
Number of students
Junior = 902
Senior = 418

Answer 1

To find out how many junior students are in Kyle's sample, we first need to calculate the proportion of juniors in the whole school.

Total number of students in the whole school = 902 (junior students) + 418 (senior students) = 1320
Proportion of juniors in the whole school = 902/1320 ≈ 0.6833

Since Kyle's sample is representative of the whole school, the proportion of junior students in his sample is also approximately 0.6833.

Now, to find out how many junior students are in Kyle's sample of 300 students:
Total number of junior students in Kyle's sample = 0.6833 * 300 ≈ 205

Therefore, there are approximately 205 junior students in Kyle's sample of 300 students.