題組內容

II. (30%) A pollster plans to randomly select people and ask about their party affiliation. The respondent can choose to be identified with one of the four political parties: Party A, B, C, or D. The pollster is interested to know \( p_A \), the share of population that are leaning toward Party A.

(b) Suppose \( 20\% \) the population is leaning toward Party A. If the pollster is to interview 10 people, what is the probability that the pollster does not find anyone who is leaning toward Party A?