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Algebra

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A polynomial of degree zero is a constant term

The grouping method of factoring can still be used when only some of the terms share a common factor A True B False

The sum or difference of p and q is the of the x-term in the trinomial

A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

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Q: Given that the variance for a data set is 1.20 what is the standard deviation?
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What does the standard deviation tell us?

standard deviation is the square roots of variance, a measure of spread or variability of data . it is given by (variance)^1/2


Does variance and standard deviation assume nominal data?

No. Variance and standard deviation are dependent on, but calculated irrespective of the data. You do, of course, have to have some variation, otherwise, the variance and standard deviation will be zero.


What is the relationship between standard deviation and variance for the same sample data?

The standard deviation is the square root of the variance.


If a set of data has 100 points and a variance 4 then what is the standard deviation?

Standard deviation is the square root of the variance. Since you stated the variance is 4, the standard deviation is 2.


Relation between mean and standard deviation?

Standard deviation is the variance from the mean of the data.


If the variance of the data a population is 256 what is the standard deviation of the data values?

16


Is variance square of standard deviation?

Yes, the variance of a data set is the square of the standard deviation (sigma) of the set. This means that the variance is always a positive number, even though the data might have a negative sigma value.


If the variance of the data values in a sample is 121 what is the standard deviation of the data values?

11


Why variance is bigger than standard deviation?

The variance is standard deviation squared, or, in other terms, the standard deviation is the square root of the variance. In many cases, this means that the variance is bigger than the standard deviation - but not always, it depends on the specific values.


If the variance of the data values in a population is 196 what is the standard deviation of the data values?

14 Apex


What is the variance If the standard deviation of some data is 36?

Variance = (std dev) ^2 = 36^2 = 1296.


Why would someone need a standard deviation calculator?

A standard deviation calculator allows the user to find the mean spread away from the mean in a statistical environment. Most users needing to find the standard deviation are in the statistics field. Usually, the data set will be given and must be typed into the calculator. The standard deviation calculator will then give the standard deviation of the data. In order to find the variance of the data, simply square the answer.

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