Question

Members of the student government are planning a movie night on campus. They have asked a random sample of students which of four movies the students would prefer. Here are the results.

Movie Preferred	Number of Students
Movie A	32
Movie B	20
Movie C	35
Movie D	28

There are

900

students total on campus.

Based on the above information, how many students on campus would we expect to prefer Movie A or Movie C? Round your answer to the nearest whole number. Do not round any intermediate calculations.

Answer 1

Total number of students surveyed is 32+20+35+28 = 115
Hence,



Hence, probability of choosing Movie A or Movie B is given by


Hence, for 900 students, Expected number of students prefering Movie A or Mvie C is:


Hence, 524 students are expected to prefer Movie A and Movie B.

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