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www.reference.com/article/sample-mean-formula-3671348a2a043659

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.

www.reference.com/article/formula-used-sample-variance-1f3668fbd6eb9e73

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, subtracting the mean for each number and then squaring the result and then determining the average of the squared...

www.reference.com/article/formula-companies-offer-samples-newborns-38447ccf7a36fb7a

Mothers can get free samples of formula from companies that sell formula and other supplies, including Gerber, Similac and Enfamil. These companies have programs, as of fall 2015, that mothers can sign up for that offer free samples, coupons and gifts.

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www.reference.com/article/formula-equation-a36486fa6ab80ab7

A formula equation is a visual representation of a reaction using chemical formulas. A chemical formula is an expression that states the number and types of atoms that make up any given molecule using the symbols for the elements and sub-scripted numbers.

www.reference.com/article/formula-arithmetic-mean-113b81ffcbde610c

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 total number of items in the group. Finding the arithmetic mean is essentially the same as taking the average.

www.reference.com/article/chemical-formula-ice-4891e536fb44b3b

Ice is the solid form of water that is created when water freezes at a temperature of zero degrees Celsius, so it has the same chemical formula of water, which is H2O. Water consists of two atoms of hydrogen and one atom of oxygen.

www.reference.com/article/formula-photosynthesis-61e061a375becb15

The balanced chemical equation for photosynthesis is 6 CO2 + 6 H2O ? C6H12O6 + 6 O2. In English terms, this equation translates to six carbon dioxide plus six water results in glucose plus six oxygen.