SOLUTION: The income (in Rands) of seven drivers during the week are 1080,2000,1580,1540,2500,1800,1580. Calculate standard deviation of income can you please correct me from the answer I

Question 1077764: The income (in Rands) of seven drivers during the week are 1080,2000,1580,1540,2500,1800,1580. Calculate standard deviation of income can you please correct me from the answer I have
1080+2000+1580+1540+2500+1800+1580=12080/7=1725.71
1080-1725.71=(-645.71)^2 =416941.40
2000-1725.71=(274.29)^2 =75235
1580-1725.71=(-145.71)^2 =21231.40
1540-1725.71=(-185.71)^2 =34488.40
2500-1725.71=(774.29)^2=599525
1800-1725.71=(74.29)^2=5519
1580-1725.71=(-145.71)^2=21231.40
S^2=1174171.60/7
= 167738.80
S=√167738.8
= 409.56
Therefore standard deviation is 409.56 please correct me
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
You are correct.

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