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We are given the values of the probability of guest reading the Los Angeles Times and guest reading Wall Street Journals, and we have to make a Venn diagram to show the probability of guest reading any one of the newspapers.

According to the question,

The probability of a guest reading the Los Angeles Times is$0.40$, probability of a guest reading Wall Street journals is$0.25$, and those who have both is$0.05$.

A Venn diagram shows the probability of reading any one of the newspapers.

We are given the values of the probability of guest reading the Los Angeles Times and the Wall Street Journals, and we have to find out the value of$\mathrm{P}\left({\mathrm{L}}^{\mathrm{C}}鈭�\mathrm{W}\right)$.

To find out the value of the given probability, we required the probability of a guest not reading the Los Angeles Times$1-0.40=0.60$, which is, and the probability of a guest reading the Wall Street Journal$0.25$, which is, and the probability of a guest reading not the Los Angeles Times but Wall Street is$0.25+0.40=0.65$.

Now, apply the union rule of probability,

which is$P\left(A鈭�B\right)=P\left(A\right)+P\left(B\right)+P(A鈭�B)$

We get$P\left(L^C鈭�W\right)=0.60+0.25-0.65=0.20$.