Question 2: In a sample of 80 AUC students, a questionnaire was out that: 45 students of them studied English; 40 studied French; 35 studied German; 20 studied "English and French"; 23 studied "English and German"; 19 studied "French and German"; and 12 students studied all. A student was chosen at random: find the probability that the student studied: (a) Only English. (b) Only German. (c) English or French. (d) Exactly one only of the three languages. (e) One language at least. (f) One language at most. (g) Exactly two languages. (h) German and French and did not study English.
Question 2: In a sample of 80 AUC students, a questionnaire was out that: 45 students of them studied English; 40 studied French; 35 studied German; 20 studied "English and French"; 23 studied "English and German"; 19 studied "French and German"; and 12 students studied all. A student was chosen at random: find the probability that the student studied: (a) Only English. (b) Only German. (c) English or French. (d) Exactly one only of the three languages. (e) One language at least. (f) One language at most. (g) Exactly two languages. (h) German and French and did not study English.
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ISBN:9781119256830
Author:Amos Gilat
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Transcribed Image Text:Question 2: In a sample of 80 AUC students, a questionnaire was out that: 45 students of them studied English;
40 studied French; 35 studied German; 20 studied "English and French"; 23 studied "English and German";
19 studied "French and German"; and 12 students studied all. A student was chosen at random: find the
probability that the student studied:
(a) Only English.
(b) Only German.
(c) English or French.
(d) Exactly one only of the three languages.
(e) One language at least.
(f) One language at most.
(g) Exactly two languages.
(h) German and French and did not study English.
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