SOLUTION: 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 mean number of T-shirts sold per week. (Round your

Algebra ->  Probability-and-statistics -> SOLUTION: 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 mean number of T-shirts sold per week. (Round your      Log On


   



Question 1180278: 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 mean number of T-shirts sold per week. (Round your answer to the nearest tenth if necessary.)
T-Shirts Sold per Week 5 10 15 20
Frequency 1 5 3 6

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
mean is sum of x*p(x)
5*1+10*5+15*3+20*6 all divided by 15
=220/15=14.67
or 5(1/15)+10(1/3)+15(1/5)+20(2/5)=1/3+10/3+3+8=14(2/3)