Mathematics, 01.06.2021 14:00, xaniawashington
In recent survey, 80% of the community favored building a police substation in their neighbourhood. If 15 citizens are chosen, what is the standard deviation of the number favoring the substation?
A: 0.55
B: 2.40
C: 1.55
D: 0.98
Answers: 1
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