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Venn diagram for college courses

Please use a truth table for this one

q arrow to p
p arrow to r
. . r arrow to q

Use a Venn diagram for this one.

A survey of 118 college students was due to find out what electives courses they were taking . Let A= set of those taking art, B = set of those taking basketweaving , and C = the set of those taking canoeing . The study revealed the following information.

n(A) =45
n(B) =55
n(C) =40
n(A intercept B intercept C) =2
n(A intercept B) =12
n( (A intercept C)=15
n (B intercept C) =23

How many students were not taking any of these electives?

Solution Summary

This shows how to use a Venn diagram to determine how many elements are in each set.