Answer:
0.0956
Step-by-step explanation:
The probability of winning a certain lottery is 1/72,639. For people who play 664 times,
find the standard deviation for the random variable X, the number of wins.
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std = [tex]\sqrt{npq}[/tex] = sqr[tex]\sqrt{664*(1/72,639)(72,638/72,639)}[/tex]
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= 0.0956
