calculating variance formula measure

To calculate the confidence interval for variance or standard deviation, a statistical distribution called ______ is needed. => chi-square distribution or binomial distribution or poisson distribution or multinomial distribution..

Let, The mass of the organic compound taken be = W g Increase in the mass of magnesium perchlorate tube = W 1 g Increase in the mass of the KOH tube = W 2 g So, Mass of water formed = W 1 g Mass of carbon dioxide formed = W 2 g ..

Let, The mass of the organic compound be = W g Mass of the precipitate of BaSO 4 = W 1 g From stoichiometry, BaSO 4 = S 1 mol 1 mol 1 molecular mass 1 atomic mass 233 g 32 g Therefore, ..

Let, The mass of silver salt taken for ignition be = W g Mass of silver left behind after ignition = W 1 g We have RCOOAg = Ag1 equivalent 1 equivalent The equivalent mass of silver is 108. Hence, the mass of silver salt that would leave 108 g of residue (equivalent mass of the silver) i..

Let, The mass of the organic compound taken be = W g Volume of air displaced = V 1 mL Atmospheric pressure = P mm of Hg Room temperature, T 1 = t o C = (t + 273)K Aqueous tension at t o C = p mm of Hg Pressure of the dry air, P 1 = (P-p) mm Hg ..

Let, The mass of the organic compound taken be = W g Volume of nitrogen collected = V 1 g Atmospheric pressure = P mm Hg Temperature at which gas is collected = T 1 K Therefore, Pressure of the N 2 gas, P 1 = (P - p) mm of Hg ..

The circle graph gives the measure of the central angle for each category. Calculate the percent of the Hispanics in the United States. => 55% or 25% or 50% or 60%..

The variance of the measures of rainfall in 20 different cities of two different states are 6 cm and 9.2 cm respectively. At a confidence level of 90%, find out the test value and check whether the variance of the rainfall in the first state is greater than that of the..

Measurement of Volume - The space occupied by a substance is called its volume. SI unit of volume is cubic meter (m 3 ). The solids whose volume can be calculated by measuring length, width, height, diameter etc. are called regular solids. Volume of some of the regular..

A method for measuring diameter of a cylinder Unwind the paper strip and measure the distance between the two pinholes. This measure is the measure of the circumference, since circumference = ( x diameter). Hence now the diameter can be calculated. ..