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What is the relation between linear expansion coefficient (α), Areal expansion coefficient (β) and volume expansion coefficient (ϒ)
Which of the following statements are true? a. The correlation coefficient is dependent on the choice of both origin and scale observations. b. The correlation coefficient is dependent on the units of measurements. c. The coefficient of correlation is the square root of the coefficient of determination. d. The zero value of the correlation coefficient cannot estimate the value of the dependent variable.
Determine the pan evaporation from the following data using the Christiansen method. Extra-terrestrial radiation in cm = 47.3cm Coefficient of temperature(Ct) = 1.403 Coefficient for wind velocity (Cw)= 1.2 Coefficient for relative humidity (Ch) = 1 Coefficient for percent of possible sunshine(Cs) = 1.073 Coefficient of elevation(Ce) = 1.014
Which of the following statements are true?
1. The coefficient of rank correlation has the same limits as the Karl Pearson's coefficient of correlation.
2. The coefficient of correlation is independent of the change of origin but not of scale.
3. The covariance between $$X$$ and $$Y$$ is defined as $$\frac{{\sum {xy} }}{n}$$ where, $$x = \left( {X - \overline X } \right),y = \left( {Y - \overline Y } \right)$$      and $$n = $$ no. of paired observations.
4. $${b_{xy}}$$ is called regression coefficient of $$X$$ variable on $$Y$$ variable.
5. If $${b_{xy}}$$ is 0.4 and $${b_{yx}}$$ is 1.6, coefficient of determination would be 0.8.
Select the correct answer:
The coefficient of areal expansion of a material is 1.6 × 10-5 K-1. Which one of the following gives the value of coefficient of volume expansion of this material?
Which of the following is the correct relation for the coefficient of thermal expansion? (L is length after temperature change, L0 is original length, α is coefficient of thermal expansion. and ΔT is changing in temperature)
What is the relation between the Coefficient of thermal expansion of concrete and the coefficient of thermal expansion in aggregates?
What is the relation between coefficient of area expansion(A) and coefficient of volume expansion(B)?
What is the value of coefficient of area expansion for a sphere? Assume coefficient of linear expansion is α.
Coefficient of thermal expansion of concrete is __________ coefficient of thermal expansion in aggregates.