Calculate the Root-Mean-Square Speed of Methane, CH₄(g), at 78°C

question 19

Multiple Choice

Calculate the root-mean-square speed of methane, CH₄(g) , at 78°C.

• A) 23 m/s
• B) 350 m/s
• C) 550 m/s
• D) 667 m/s
• E) 739 m/s

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Definitions:

Unbiased Estimator

A statistic used to estimate a parameter of a population that, on average, exactly equals the true parameter.

Variance

Variance measures the dispersion of a set of data points around their mean value, quantifying how spread out the data points are.

Error Variable

The difference between observed and predicted values in a statistical model, representing unexplained or random variability.

Regression Analysis

A statistical method for modelling the relationship between a dependent variable and one or more independent variables.