Note: Answer Questions 1-4 by Using the TI-30XA (or other approved) Calculator I

Question

Note: Answer Questions 1-4 by Using the TI-30XA (or other approved) Calculator IMPORTANT: Make sure you carry all decimals until you reach your answer, then round to four declmals. A local university found it could classify its students into one of three general categories: morning students (40% the morning students, 24% of the afternoon students, and 17% of the evening students live on campus. afternoon students (3 3% and evening students 37% of Question What is the probability a non-Ahernoon studen does not live on campus

Explanation / Answer

probability of a evening student =1-0.4-0.33 =0.27

probability of non afternoon student =P(morning +evening studen) =0.4+0.27 =0.67

probability of non afternoon and does not live on campus =P(morning and does not live in capmpus+evening and does not live in capmpus)=0.4*(1-0.37)+0.27*(1-0.17)=0.4761

hence probability a non afternoon student does not live on campus

=P(non afteroon and does not live on campus)/P(non afternoon) =0.4761/0.67=0.7106

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