Determine the range and standard deviation of the prices of digital cameras shown below. ​$158​, ​$94​, ​$175​, ​$178​, ​$97​, ​$129​, ​$230​, ​$307
The range of the prices is ​$nothing. ​(Simplify your​ answer.)

The standard deviation of the prices is ​

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

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