By means of a scatter diagram, determine if a relationship exists between product temperatures and percent foam for a soft drink. Data are as follows:

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Product Temperature Foam Product Temperature Foam Day (F) (%) Day (F) (%) 12 36 38 3 37 522 15 11 44 32 19 12 42 33 21 13 38 20 4 44 30 14 41 27 5 46 36 15 45 35 6 39 20 16 49 38 7 41 25 17 50 40 8 47 36 18 48 42 9 39 22 19 46 40 10 40 23 20 41 30