Q:
# What is the sample mean formula?

**Sample mean is calculated by finding the sum of all terms in the selected sample and dividing this figure by the total number of terms.** This formula is used to compute the average of the data collected.

The sample mean formula is essential when it comes to finding the average of raw data. In statistics, the sample mean is used as an estimate of the population mean since it is usually enormous. For example, it can be used to calculate the mean marks obtained on an exam by a group of students in a selected class. Alternatively, it is can be used in evaluating the average age of people in a given country since it would be very difficult to add up the ages of every single member of the population.

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Q:
## What formula is used to find a sample variance?

A: The formula to find a sample variance is as follows: s squared equals sigma(x-x-bar)squared over n-1. Working out the problem involves determining the mean... Full Answer >Filed Under: -
Q:
## What is the margin of error formula?

A: The margin of error formula is an equation that measures the range of values above and below the sample statistic. It is defined by taking the critical val... Full Answer >Filed Under: -
Q:
## How do you calculae the mean absolute deviation?

A: Find the mean absolute deviation by finding the sum of the absolute value of x minus mu, all divided by N. In this formula, mu is the mean, x is the value ... Full Answer >Filed Under: -
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## What is the formula for arithmetic mean?

A: The formula for the arithmetic mean of a group of numbers is A = S/N, where S represents the sum of all the numbers in the group, and N represents the tota... Full Answer >Filed Under: