Question 24 The data below represents the number of T-shirts sold per week by a student who started his own online t- shirt business. Find the weighted mean of the number of t-shirts sold per week. (Round your answer to the nearest tenth if necessary.) T-Shirts Sold per Week Weighted mean Add Work > Next Question Frequency 4 5 8 6 12 1 16 2 Question 25 < > This data is from a sample. Calculate the mean, standard deviation, and coefficient of variation. Suggestion: use technology. Round answers to two decimal places. Mean X 31 15.7 17.3 42.2 39 34.6 41.4 Standard Deviation Coefficient of Variation Add Work = %