# Results for: “Mathematics”

Title | Author | Publisher | Format | Buy | Remix | ||
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## Introduction to Proofs: GRE Geometry |
Ace Academics | Ace Academics | ePub | ||||

## Variables: CLEP Algebra I |
Ace Academics | Ace Academics | ePub | ||||

## Algebraic Fractions: COOP-HSPT Algebra |
Ace Academics | Ace Academics | ePub | ||||

## Addition: Fractions: GED Arithmetic |
Ace Academics | Ace Academics | ePub | ||||

## Addition and Subtraction: Decimals: PSAT Arithmetic |
Ace Academics | Ace Academics | ePub | ||||

## Percents: SSAT-ISEE Arithmetic |
Ace Academics | Ace Academics | ePub | ||||

## Polynomials: GED Algebra |
Ace Academics | Ace Academics | ePub | ||||

## Real Numbers: COOP-HSPT Arithmetic |
Ace Academics | Ace Academics | ePub | ||||

## qtc12-1 |
N.P.Bali; P.N.Gupta; Dr C.P.Gandhi | Laxmi Publications | |||||

Unit-III Correlation Analysis 12 Correlation and Regression 12.1. UNIVARIATE DISTRIBUTIONS Distributions involving one variable are called univariate distributions. For example, marks obtained in a particular subject, wages earned by a group of workers. 12.2. BIVARIATE DISTRIBUTIONS Distributions involving two variables are called bivariate distributions. For example, heights and weights of a certain group of persons, ages of husband and wife at the time of marriage. 12.3. CORRELATION (P.T.U., M.B.A. Dec., 2009) In a bivariate distribution, if the change in one variable affects a change in the other variable, the variables are said to be correlated. 12.4. POSITIVE OR NEGATIVE CORRELATION (P.T.U., M.B.A. Dec. 2006) If the increase (or decrease) in one results in a corresponding increase (or decrease) in the other, correlation is said to be direct or positive. For example, the correlation between income and expenditure is positive. If the two variables deviate in opposite directions, i.e., if the increase (or decrease) in one results in a corresponding decrease (or increase) in the other, correlation is said to be inverse or negative. For example, the correlation between volume and pressure of a gas, correlation between price and demand, are negative correlation. See All Chapters |
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## Square Roots and Powers: GED Arithmetic |
Ace Academics | Ace Academics | ePub | ||||

## Polynomials: PSAT Algebra |
Ace Academics | Ace Academics | ePub | ||||

## Percents: COOP-HSPT Arithmetic |
Ace Academics | Ace Academics | ePub | ||||

## Square Roots and Powers: SSAT-ISEE Arithmetic |
Ace Academics | Ace Academics | ePub | ||||

## Subtraction: Fractions: Praxis I Arithmetic |
Ace Academics | Ace Academics | ePub | ||||

## Sequences and Series: CLEP Precalculus |
Ace Academics | Ace Academics | ePub | ||||