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It Is Reported That 7% of the Super Star Scratch-And-Win

Question 113

Multiple Choice

It is reported that 7% of the Super Star scratch-and-win lottery tickets are winners.If you scratch 250 tickets, what is the standard deviation of the random variable "number of winning tickets"?


A) 4.03
B) 5.12
C) 4.62
D) 3.98
E) 5.53

Correct Answer:

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