Final answer:
The coefficient of variation (CV) is 6%. The 75th percentile is 76.2.
Step-by-step explanation:
To compute the sample standard deviation, we can use a graphing calculator or computer software. In this case, since we repeatedly draw samples of size 100 from a population with a mean of 75 and a standard deviation of 4.5, we can calculate the sample standard deviation as 4.5.
To find the coefficient of variation (CV), divide the sample standard deviation by the mean and multiply by 100. In this case, the CV is
(4.5 / 75) * 100
= 6%.
The 75th percentile represents the value below which 75% of the data falls. To find it, we can use a calculator or computer software. In this case, the 75th percentile is 76.2.