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Two important characteristics of a hypothesis are that it should be testable and that it should be stated in a manner that it can be refuted. Which one of the following hypotheses, fulfils these characteristics

Two important characteristics of a hypothesis are that it should be testable and that it should be stated in a manner that it can be refuted. Which one of the following hypotheses, fulfils these characteristics ?

(a)

Intelligent persons have good memory

(b)

Some birds are animals

(c)

Some businessmen are dishonest

(d)

All men are mortal

Answer:

Explanation