Please help :( Find the standard deviation of the set of data below to the nearest tenth.

14,11,9,6,10,16,15,13,9,12,19,10

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shaydog6353

10.05.2021

Mathematics

There are 6 green fish in the aquarium.

Step-by-step explanation:

Let be "g" the number of green fish in the aquarium and "y" the number of yellow fish in the aquarium.

You can set up a system of equations:

$\left \{ {{y=g+3} \atop {y=0.6(g+y)}} \right.$

Solve for "g" from the first equation and substitute this into the second equation and solve for "y":

$y=g+3\\g=y-3$

$y=0.6(y-3+y)\\y=0.6y-1.8+0.6y\\1.8=1.2y-y\\1.8=0.2y\\y=9$

Finally, substitute y=9 into g=y-3 , then:

$g=9-3\\g=6$

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Please help :( Find the standard deviation of the set of data below to the nearest tenth. 14,11,9,6,10,16,15,13,9,12,19,10