This question is based on the following circle graph. The graph represents the results of a survey in which 400 people were aske
d to identify the TV channel on which they preferred to watch the evening news.
5. How many more people preferred WWCN than WANR?
A. 236
B. 68
C. 76
D. 164
5. How many more people preferred WWCN than WANR?
A. 236
B. 68
C. 76
D. 164
2 answers:
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Answer: the percent of the students at this university are foreign = 30%
Step-by-step explanation:
Given: Probability that college students are foreign students who also smoke: P(S|F)=0.12
Probability that foreign college students smoke P(S∩F)=0.4
The probability that the students at this university are foreign :
[By conditional probability formula]
Hence, the percent of the students at this university are foreign = 30%