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.
A pregnancy test detects the hCG (Human Chorionic Gonadotropin) hormone in your urine. The presence of this hormone confirms your pregnancy status. Many times, an hCG test proves to be negative even if you are pregnant. This is because hCG enters the blood stream 8-10 days after fertilization (before a missed period).The detectable levels of hCG in urine occur only 1-2 weeks after missing your period.any times, an hCG test proves to be negative even if you are pregnant. This is because hCG enters the blood stream 8-10 days after fertilization (before a missed period). The detectable levels of hCG in urine occur only 1-2 weeks after missing your period.