Toothpaste According to a commercial, 4 out of 5 dentist recommend a certain brand of toothpaste. Suppose There are 120 dentist in your area. What is the expected number of dentist who recommend the brand? What is the standard deviation? Select one: O Hz = 96; o = 4.38 im O Hz = 0.80; o = 96 O mu, = 96; o = 19.2 OH=96; o = 9.80

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