Look at the Following Code

question 35

Multiple Choice

Look at the following code. What is missing from ClassA?
Line 1 public interface MyInterface
Line 2 {
Line 3 int FIELDA = 55;
Line 4 public int methodA(double) ;
Line 5 }
Line 6 public class ClassA implements MyInterface
Line 7 {
Line 8 FIELDA = 60;
Line 9 public int methodB(double) { }
Line 10 }

• A) It does not override methoda.
• B) It does not have a constructor.
• C) It does not overload methoda.
• D) Nothing is missing. It is a complete class.

Understand the significance of double-blinding in an experiment.

Recognize the necessity of a control group in experimental research.

Recognize and describe the role of blocking variables in experimental design.

Identify and explain common flaws in experimental design.

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