7. In an effort to reduce the amount of smoking, the administration of a hospital is considering the establishment of a smoking clinic to help students "break the habit." However, not all the students at a certain school favor the proposal As a result, a survey of the 1000 students it the school was conducted to determine their opinion about the proposal. The table below summarizes the results of the survey. Against Smoking Clinic For Smoking Clinic 122 No Total Opinion 163 231 Freshmen Sophomores Juniors Seniors Total 23 39 58 71 18 165 -27 238 127 46 342 66 264 191 652 157 1000 a What is the probability that a student selected at random voted against the establishment of the smoking clinic? b. Ha student is a freshman, what is the probability that the student voted for the smoking clinic? c. Ifa senicr about the clinic? selected at random, what is the probability that the senior has no opinion
7. In an effort to reduce the amount of smoking, the administration of a hospital is considering the establishment of a smoking clinic to help students "break the habit." However, not all the students at a certain school favor the proposal As a result, a survey of the 1000 students it the school was conducted to determine their opinion about the proposal. The table below summarizes the results of the survey. Against Smoking Clinic For Smoking Clinic 122 No Total Opinion 163 231 Freshmen Sophomores Juniors Seniors Total 23 39 58 71 18 165 -27 238 127 46 342 66 264 191 652 157 1000 a What is the probability that a student selected at random voted against the establishment of the smoking clinic? b. Ha student is a freshman, what is the probability that the student voted for the smoking clinic? c. Ifa senicr about the clinic? selected at random, what is the probability that the senior has no opinion
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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