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Precision and accuracy are two ways that scientists think about error. Accuracy refers to how close a measurement is to the true or accepted value. Precision refers to how close measurements of the same item are to each other. Precision is independent of accuracy.

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Tornado

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2y ago

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How close a measured value is to an accepted value is called a?

accuracy


What does it mean to find a data point within one standard deviation of the mean?

The data point is close to the expected value.


What is the chi square test used for?

The chi-squared test is used to compare the observed results with the expected results. If expected and observed values are equal then chi-squared will be equal to zero. If chi-squared is equal to zero or very small, then the expected and observed values are close. Calculating the chi-squared value allows one to determine if there is a statistical significance between the observed and expected values. The formula for chi-squared is: X^2 = sum((observed - expected)^2 / expected) Using the degrees of freedom, use a table to determine the critical value. If X^2 > critical value, then there is a statistically significant difference between the observed and expected values. If X^2 < critical value, there there is no statistically significant difference between the observed and expected values.


Is correlation a resistant measure?

i think correlatioin is a nonresistant measure because if you take out outliers than only the data that's close together is there...this will increase the correlation closer to -1 or 1, depending on the slope


What does standard deviation value indicate?

The standard deviation for a set of data is a measure of how much the individual observations are spread about their mean. A small value indicates that they are all tightly packed around the mean value whereas a large value indicates that the observations are not so close together.

Related Questions

Accuracy is a measure of how close an answer is to the actual or expected?

True Apex ;)


Precision is a measure of how close an answer is to the actual or expected?

False


Precision is a measure of how close an answer is to the actual or expected true or false?

false


True or false Precision is a measure of how close an answer is to the actual or expected value?

false


What is the accuracy measurement in 20570 pound?

The accuracy of a measurement does not depend on the weight being measured. Instead, accuracy is a measure of how close a measured value is to the true or expected value. To determine the accuracy of a measurement in pounds, you would need to compare the measured weight of 20570 pounds to the actual weight or reference standard.


What does accuracy mean in term?

In term of Science : Accuracy is how close a numerical measure is to its actual value. In term of mathematics : the number of significant figures given in a number


Which term describes how close measurements are to the actual value?

Accuracy describes how close measurements are to the actual value. It is a measure of how well the results agree with the true value of the quantity being measured.


How close a measurement is to the actual value?

This is termed the accuracy of the measurement.


What are accuracy?

Refers to how close a measurement is to the true or actual value.


How close a measured quantity is to the actual or known value?

Accuracy


What describes the two parts of a measurement?

Accuracy. How close you are to your expected value. Precision. How close together you values are.


The ability to make a measurement that is as close to an actual value is called a...?

The ability to make a measurement that is as close to an actual value is called accuracy. Accuracy is the extent to which a measured value agrees with the true value of a quantity.