SOLUTION: Travel time the following data represent the travel time (in min) to school for 9 students enrolled in Sullivan college for Algebra course treat the 9 students as a population Am

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Question 872432: Travel time the following data represent the travel time (in min) to school for 9 students enrolled in Sullivan college for Algebra course treat the 9 students as a population
Amanda 39, amber 21, Tim 9, mike 32, Nicole 30, Scot 45, Erica 11, Tiffany 12, glen 39
determine the population standard deviation
I know I get the mean and square the result meas of those squared diff, square root my problem I can do all the work up to the square root i don't know how to do this and can find a video to teach me.
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!


Hi

x	mean	x-mean	(x-mean)^2	

39	26.4	12.6	158.76	

21	26.4	-5.4	29.16	

9	26.4	-17.4	302.76	

32	26.4	5.6	31.36	

30	26.4	3.6	12.96	

45	26.4	18.6	345.96	

11	26.4	-15.4	237.16	

12	26.4	-14.4	207.36	

39	26.4	12.6	158.76	

238			1484.24	

26.4 		185.53	 (n-1) Used

		    sqrt(185.53) = 13.62 SD

Use Calculator to do sqrt

Round off as Directed

	

 

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