Q2/ A: The volumetric flow rate of a process fluid, V (cm'/s), is measured five times, with the following results: Measurement 2 V (cm/s) 232 248 227 241 239 a. Calculate the sample mean, range, sample variance and sample standard deviation. b. There is a high probability (above 90%) that a measured value of (V) will fall within two standard deviations of the mean. Report the value of (V) in the form V = atb. choosing the values of (a) and (b) to define this range.

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.