0
Still curious? Ask our experts.
Chat with our AI personalities
Maxine
Vivi
FranAdd your answer:
Earn +20 pts
How do you calculate Specificity and sensitivity?
How to calculate specificity?, please specify ^^
Find the area of an object?
The answer very much depends on the object. There are many formulas for areas of many common objects. Sometimes there is not formula and you must approximate it. Unfortunately, the question lacks enough specificity to be answered.
Why cannot the uncertainty of a measurement be zero?
Any instrument with which you measure can only have a finite degree of specificity, and you will always have error within that degree of specificity. For example, using a meter stick that includes centimeters and millimeters, and the human eye a person can measure the length a stick, and by looking at the millimeter marks decide if the length is closer to 3.4 centimeters or 3.3 centimeters. In actuality, the length is something in between, but the person can only report what they see, so if the end of the stick is closer to 3.4 than 3.3, they will say 3.4. In this case, the error is .05 cm (or .5 mm) because you can only detect lengths as being more or less than halfway between two mm marks. A better ruler might have marks between the mm marks. You could imagine someone with really great vision who could see .1 mm on this special ruler. So they might be able to tell that the stick is closer to 3.43 cm than 3.44 cm, but that's as precise of a decimal as they could report, because the measuring instrument (the ruler) only includes marks for .1 mm (or .01 cm). The maximum error in this case would be .005 cm (or .05 mm) because the person can tell the stick is less than halfway between 3.43 and 3.44, but cannot decipher more than that. Any measuring instrument, not jut rulers, comes with a finite level of specificity. The maximum error is half of that level of specificity. A scale that reports weight only in whole pounds would have maximum error of .5 lbs, while a scale that reports weight in tenths of a pound would have a maximum error (or uncertainty of measurement) of .05 lbs.
What is the reciprocal of -1?
The reciprocal of 1 is 1. Proof: a. 1*(1/1) = 1 because a*(1/a) = 1 b. 1*1 =1 because 1*a = a c. 1/1 = 1 compare a. and b.
Does the last nucleotide in a codon have less specificity than the others and if so why?
Yes, this is true (generally speaking). In many cases there are two different codons that differ at the third position yet code the same amino acid. I hypothesize that the reason that this is so is that nature has naturally selected the codons to be resistant to certain transition and transversion mutations. transition mutation = purine to purine or pyrimidine to pyrimidine transversion mutation = purine to pyrimidine or pyrimidine to purine
