13-15. A survey classified 200 students by gender and by their opinion on a certain issue. The… 1 answer below »

13-15. A survey classified 200 students by gender and by their opinion on a certain issue. The number falling into the different categories are shown in the following table. A student is randomly chosen from the group. Opinion Gender For Against Total Male 30 40 70 Female 50 80 130 Total 80 120 200 13. [2.1.1] The probability that the student is female and is against the issue is (A) .615 (B) .4 (C) .667 (D) .85 (E) None of these 14. [2.1.2] The probability that the student is male or is for the issue is (A) .35 (B) .40 (C) .43 (D) .6 (E) .375 15. [2.1.4] Given that the student chosen is for the issue, the conditional probability that the student is male is (A) .375 (B) .35 (C) .40 (D) .6 (E) .43

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