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.
accuracy
The data point is close to the expected value.
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.
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
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.
True Apex ;)
False
false
false
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.
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
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.
This is termed the accuracy of the measurement.
Refers to how close a measurement is to the true or actual value.
Accuracy
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 accuracy. Accuracy is the extent to which a measured value agrees with the true value of a quantity.