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Can a pregnancy test prove negative and an ultra scan prove positive for pregnancy and what may cause that?
Wiki User
∙ 15y ago
There are several reasons a home pregnancy test may show negative and and ultrasound show positive. The test could be faulty, you may have used the test incorrectly, the urine sample may have been heavily diluted, you may have tested too soon.
Wiki User
∙ 15y ago
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What year did ben Franklin prove there are negative and positive charges?
go die
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The advantage of the correlational research method is the ability to prove a positive or negative correlation between two subjects . The disadvantage of this is the unclear interpreation of cause and affect. moletsane
What are the advantages and disadvantages of correlation method?
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We don't. It is impossible to prove a negative. It is called the Paradox of negative information. You can only prove something does exist, you cannot prove non-existence.
Prove negative 3 is less the negative 2.?
draw axes。
