The Venn diagram shows the number of patients seen at a pediatrician’s office in one week for colds, C, ear infections, E, and a
llergies, A.
Circles C, E, and A overlap. Circle C contains 4, circle E contains 9, and circle A contains 15. The overlap of C and A contains 2, the overlap of C and E contains 10, and the overlap of E and A contains 3. The overlap of the 3 circles contains 1. Number 5 is on the outside of the circles.
How many patients had allergies or ear infections, but not both?
24
27
36
40
Circles C, E, and A overlap. Circle C contains 4, circle E contains 9, and circle A contains 15. The overlap of C and A contains 2, the overlap of C and E contains 10, and the overlap of E and A contains 3. The overlap of the 3 circles contains 1. Number 5 is on the outside of the circles.
How many patients had allergies or ear infections, but not both?
24
27
36
40
2 answers:
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