An anonymous survey of college students was taken to determine behaviors regarding alcohol, cigarettes, and illegal drugs. The results were as follows: 862drank alcohol regularly, 633 smoked cigarettes,188 used illegal drugs, 407 drank alcohol regularly and smoked cigarettes, 101 drank alcohol regularly and used illegal drugs, 103 smoked cigarettes and used illegal drugs, 82 engaged in all three behaviors, and 196 engaged in none of these behaviors. a) How many students were surveyed? Of those surveyed, b. How many drank alcohol regularly or smoked cigarettes? c. How many used illegal drugs only?
An anonymous survey of college students was taken to determine behaviors regarding alcohol, cigarettes, and illegal drugs. The results were as follows: 862drank alcohol regularly, 633 smoked cigarettes,188 used illegal drugs, 407 drank alcohol regularly and smoked cigarettes, 101 drank alcohol regularly and used illegal drugs, 103 smoked cigarettes and used illegal drugs, 82 engaged in all three behaviors, and 196 engaged in none of these behaviors. a) How many students were surveyed? Of those surveyed, b. How many drank alcohol regularly or smoked cigarettes? c. How many used illegal drugs only?
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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An anonymous survey of college students was taken to determine behaviors regarding alcohol, cigarettes, and illegal drugs. The results were as follows: 862drank alcohol regularly, 633 smoked cigarettes,188
used illegal drugs, 407 drank alcohol regularly and smoked cigarettes,
used illegal drugs, 407 drank alcohol regularly and smoked cigarettes,
101 drank alcohol regularly and used illegal drugs, 103 smoked cigarettes and used illegal drugs, 82 engaged in all three behaviors, and 196
engaged in none of these behaviors.a) How many students were surveyed?
Of those surveyed, b. How many drank alcohol regularly or smoked cigarettes?
c. How many used illegal drugs only?
d. How many drank alcohol regularly and smoked cigarettes, but did not use illegal drugs?
e. How many drank alcohol regularly or used illegal drugs, but did not smoke cigarettes?
f. How many engaged in exactly two of these behaviors?
g. How many engaged in at least one of these behaviors?
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