Lisa runs a local flower shop, if it rains on Valentine's Day and she opens the shop, she will lose $200. If it does not rain on Valentine's Day, she will earn $500 dollars as profits
The chance of rain is 30%, the standard deviation of the profits Lisa could earn on Valentine's Day is A) 198.17.
B) 135.61.
C) 432.43.
D) 290.
A
Economics
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