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sashaice
2 months ago
14

An experiment compared the adhesion of 2 types of paint, A and B, to 3 types of metal, 1, 2, and 3, used in automobiles. Thirty

sheets of metal were used in the experiment: 10 of Metal 1, 10 of Metal 2, and 10 of Metal 3. Half of each metal type will receive paint A and the other half will receive paint B. The adhesion of the paints was measured, and the measures were compared. How many experimental units are in the experiment?
A. 2

B.3


C. 10


D. 30


E. 60
Advanced Placement (AP)
1 answer:
horsena [243]2 months ago
5 0

Answer:

  • The experiment consists of 30 experimental units, which comprise the 30 sheets of metal.

Explanation:

The table below illustrates how the experimental units, the sheets of metal, were utilized:

               Metal 1         Metal 2       Metal 3       Total

Paint A         5                     5               5                15

Paint B         5                     5               5                15

Total            10                   10              10               30

Fifteen sheets (units) were coated with paint A: 5 from metal 1, 5 from metal 2, and 5 from metal 3.

Fifteen sheets (units) received paint B: 5 from metal 1, 5 from metal 2, and 5 from metal 3.

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