Q:
# What is error propagation?

**In statistics, error propagation (also known as propagation of uncertainty) refers to the process used in determining the uncertainty of results obtained from a given calculation.** Finding the error and calculating the ambiguity is essential in establishing the validity of the result.

Credit:
Anthony Lee
OJO Images
Getty Images

Every measurement used in collecting data has some degree of uncertainty. However, not all uncertainties are equal. Uncertainty can arise from a variety of factors: sample difference, instrument variability, different observers and even time of day when the measurement was being taken. As such, for any calculation that utilizes more than one measured variable, it is essential to find the error propagation in order to determine the level of uncertainty.

Learn more about Statistics-
Q:
## How is a split-half reliability measurement performed?

A: A half-test reliability measurement can be performed by splitting the test questions into two groups, such as odd-numbered questions and even-numbered ques... Full Answer >Filed Under: -
Q:
## How do you calculate statistical sample variance?

A: To calculate the sample variance of a population, first determine the mean of the sample, subtract each data point from the mean, square each resulting num... Full Answer >Filed Under: -
Q:
## What is the purpose of a pivot table?

A: A pivot table is used to automatically categorize and display summarized results in any of its three viewing areas, namely rows, columns or layers. A pivot... Full Answer >Filed Under: -
Q:
## What is meta-analysis?

A: Meta-analysis is where data from multiple studies on the same subject are combined to give a greater overall data pool to establish results from. These com... Full Answer >Filed Under: