Including the positives and negatives, there are eight blood groups. Which is the rarest?
Blood type (non-human) donor cats for FeLV/FIV status. There are eight major recognized blood groups in horses. Seven of them, A, C, D, K, P, Q, and U, are internationally recognized, with an eighth, T, which is primarily used in research. Each blood group has at least two allelic factors (for example, the A blood group has a, b, c, d, e, f, and g), which can be combined in all combinations (Aa, Afg, Abedg, etc.), to make many different alleles. This means that horses can have around 400,000 allelic combinations, allowing blood testing to be used as an accurate method of identifying
False positives and false negatives achieve a false positive risk of 5%. For example, if we observe "p"= 0.05 in a single experiment, we would have to be 87% certain that there as a real effect before the experiment was done to achieve a false positive risk of 5%. The article "Receiver operating characteristic" discusses parameters in statistical signal processing based on ratios of errors of various types. In many legal traditions there is a presumption of innocence, as stated in Blackstone's formulation: That is, false negatives (a guilty person is acquitted and goes unpunished) are far less adverse than false positives (an innocent person