Calculate the sample standard deviation using the following data about Granola Bars.
| Granola Bars | Price (Dollar) per Box |
| Nature Valley | 5.90 |
| Quaker | 4.36 |
| Power Bar | 10.00 |
| Meijer | 4.90 |
| Fiber One | 5.90 |
In order to calculate the sample standard deviation we need to calculate the sample mean:
ReplyDeleteMean: (5.90+4.39+10.00+4.90+5.90)/5=6.212
Then we need to calculate the Sample Variance:
S^2=((5.90-6.212)^2+(4.36-6.212)^2+(10.00-6.212)^2+(4.90-6.212)^2+(5.90-6.212)^2 )/(5-1)= 4.92372
and finally, we can calculate the Standard Deviation:
S=√4.92372 = 2.2189457
Answer: The Standard Deviation for the data is approx. 2.2189457