Statistics- A large lecture theater has 230 seats, 21 of which
QUESTION
*Give all answers to four decimal places.A large lecture theater has 230 seats, 21 of which can accomodate left-handed students. Suppose it is known that 12% of people are left-handed. One class held in the theater has 209 students.(a) Let X be the number of left-handed students in the class. What are the mean and standard deviation of X?(b) Let be the proportion of left-handed students in the class. What are the mean and standard deviation of ?(c) What is the approximate probability that all left-handed students in the class get an appropriate desk?
ANSWER:
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