What is the 'Arithmetic Mean' The arithmetic mean is a mathematical representation of the typical value of a series of numbers, computed as the sum of all the numbers in the series divided by the count of all numbers in the series. The arithmetic mean is sometimes referred to as the average or simply as the mean. Some mathematicians and scientists prefer to use the term arithmetic mean to distinguish it from other measures of averaging, such as the geometric mean and the harmonic mean.
HCG can be detected in urine or blood after implantation, which occurs on average 9 daye (range 6-12 days) after fertilization. Some home pregnancy tests claim to detect hCG as early as 4 days before the next expected period.
Implantation usually occurs 5-6 days after conception. So for a blood test I would say it would detect pregnancy around 8 days after conception.A home pregnancy test takes longer to detect HCG because they are only sensitive to a certain amount of HCG, usually 50 and higher.Your HCG doesn't reach 50 until about 13 days after conception and sometimes longer.When a doctor orders a blood pregnancy test they will order a quantitive hcg test...meaning they want to know what your HCG level is at.our HCG doesn't reach 50 until about 13 days after conception and sometimes longer. When a doctor orders a blood pregnancy test they will order a quantitive hcg test...meaning they want to know what your HCG level is at.