18. Suppose 18% of movie-goers say that horror is their favorite movie genre. If a random sample of 70 movie-goers is taken, what are the mean and standard deviation of the number of movie-goers that prefer horror? A. H= 0.18 В. и 3D 12.6 С. и3D0.18 O =0.0459 O =10.332 o =0.0021 o = 3.2143 D. u = 12.6

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