The venn diagram shows the number of patients seen at a pediatrician’s office in one week for colds, c, ear infections, e, and allergies, a.

how many patients had allergies or ear infections, but not both?

 There are 24 patients who had allergies or ear infections but not both.

Step-by-step explanation:

Since we have given that

Number of patients having ear infections = 9

Number of patients having allergies = 15

We need to find the number of patients had allergies or ear infections, but not both.

According to Venn diagram , we get that

Number of patients had allergies or ear infections is given by

Hence, there are 24 patients who had allergies or ear infections but not both.

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