Precision is the agreement among several trials in measurement therefor, a wooden ruler is more precise because you will be estimating the measured value over and over again
They are equal
20 21/32 is more precise.20 21/32 is more precise.20 21/32 is more precise.20 21/32 is more precise.
Ounces are more precise.
3.1 mL is more precise.
Precision is the agreement among several trials in measurement therefor, a wooden ruler is more precise because you will be estimating the measured value over and over again
They are equal
The answer depends on the graduations marked on the ruler.
It depends how accurately you can read the scale. A ruler would only be accurate to 1 mm. If the caliper has a vernier scale it should be ten times better
When you estimate you guess the size of something, but when it is precise you have to actually measure it, e.g with a ruler.
the ruler is straight and the string is not so it makes it harder for you to measure the string
cups is less precise.
155 mm
20 21/32 is more precise.20 21/32 is more precise.20 21/32 is more precise.20 21/32 is more precise.
Ounces are more precise.
The precision of something just means that the result can be repeated again and again. Everytime you repeat an experiment, you will get the same result. But that doesn't necessarily mean that the results are accurate! Your measurments, results, whatever can be very precise, but completely inaccurate. Accuracy is how close something is to the true value. For example, say I have a ruler. I have used this ruler to measure my table 10 times. Every time I measure the table, I get a measurement of 10ft. My measurement is very precise. However, what I don't know is that there is a fault with my ruler. The inches on my ruler are not true inches. Each inch may actually be only 1/9th of an inch. Or all the inches on my ruler may not even be the same. So while my measurements I took with my ruler 10 times are precise, they are not accurate because there is fault with my ruler. Something can be precise, but not necessarily accurate! I would say that this is the biggest limitation of precision. A precise measurement is not always a reliable one!
3.1 mL is more precise.