a university surveys a randomly selected group of 250 freshmen. In the group, 20 of the freshmen were left-handed. If there are 8,000 in the freshman class, what is the best prediction fo the number of left-handed freshmen students?
THANK YOU!
To find the best prediction for the number of left-handed freshmen students, you can use the concept of probability and apply it to the given sample.
The university surveyed a group of 250 freshmen and found that 20 of them were left-handed. This means that within this sample, the proportion of left-handed freshmen is 20/250 = 0.08.
To estimate the number of left-handed freshmen in the entire class of 8,000 students, you can use this proportion. Multiply the proportion of left-handed students in the sample by the total number of students in the class:
Estimated number of left-handed freshmen = (Proportion of left-handed students in the sample) * (Total number of freshmen)
Therefore, the best prediction for the number of left-handed freshmen students would be:
Estimated number of left-handed freshmen = 0.08 * 8,000 = 640
So, the best prediction is that there are approximately 640 left-handed freshmen students in the class of 8,000.
20/250 = 0.08 = 8%
0.08 * 8,000 = ?