how to calculate a normal distribution

Let, The mass of the acid dissolved be = W g Volume of alkali used for complete neutralization of acid solution = V 1 mL Normality of the alkali solution = N 1 Then, we can write, V 1 mL of alkali solution having normality N 1 = Wg acid From the definition, 1000 mL of 1N..

The graph of a normal distribution will be ________. => It has no predictable shape or Skewed left or Skewed right or Symmetric..

When can the normal distribution be used as an approximation to the binomial distribution? => n . p = 5, n . q = 5 or n . p ≤ 5, n . q ≤ 5 or n . p > 5, n . q < 5 or n . p ≥ 5, n . q ≥ 5..

Normality Equation - To calculate the volume of a definite solution required to prepare solutions of other normality, the following equation is used: N 1 V 1 =N 2 V 2 , where N 1 =initial normality and N 2 =normality of the new solution, a nd V 1 = ..

How many modes does a normal distribution curve have? => zero or more than two or one or two..

Which of the following curves represent a normal distribution curve? => Graph 3 or Graph 1 or Graph 4 or Graph 2..

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..

Calculate, with the help of the distributive property, the total number of items in the given figure. => 63 or 56 or 52 or 49..

Normality of a solution is defined as the number of gram equivalents (gm.e) of a solute dissolved per litre of the given solution. Mathematically it is, Normality is expressed by the symbol N. It can also be expressed as,..

The normal at any point of the spherical mirror is the straight line obtained by joining that point with the centre of the mirror. The normal at point A on the mirror is the line AC obtained by joining A to the centre of curvature of the mirror. Normal at any point on..