multiple choice question

10 What is the expectation for this probability distribution? X P(x) 1 0.23 2 0.41 3 0.19 4 0.17 A 0.25 B1.0 C0.575 D 2.3 11 Five cards are dealt from a standard deck. What is the expected number of hearts? A 20 B 135.2 C2 D 1.25 12 In a six-question multiple-choice test, there are four possible answers for each question. For a person who guesses at each question, what is the expected number of correct answers? Al B2 C1.5 D3 13 A six-member jury is randomly chosen from 10 women and 14 men. What is the expected number of men on the jury? A 4.4 B 7.5 c3.5 D 2.7 14 When rolling a die 12 times, what is the expected number of times a 4 will show? Al B2 C3 D4