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Standard Deviation
Standard Deviation of a statistical data is defined as the positive square root of the arithmetic mean of the squared deviations of items from their arithmetic mean of the series under consideration. The standard deviation is denoted b..
Standard Deviation
of a statistical data is defined as the positive square root of the arithmetic mean of the squared deviations of items from their arithmetic mean of the series under consideration. The standard deviation is denoted by s (sigma). The standard deviatio..
of a statistical data is defined as the positive square root of the arithmetic mean of the squared deviations of items from their arithmetic mean of the series under consideration. The standard deviation is denoted by s (sigma). The standard deviatio..Standard Deviation for continuous series
In this series too deviations may be taken either from the actual mean or from standard mean. The calculations will be simplified if the deviation are taken from assumed me..
Standard Deviation for continuous series
In this series too deviations may be taken either from the actual mean or from standard mean. The calculations will be simplified if the deviation are taken from assumed mea..
Merits and Demerits of standard deviation
Merits: s is based on every item of the data. s takes care of both positive and negative deviation. Demerits: s is some what not easy to understand. The extreme values unduly affect s..
Calculation of Standard Deviation for discrete series
In the discrete series, when deviations are taken from actual mean, the formula ..
In the discrete series, when deviations are taken from actual mean, the formula ..
..Give the control limits for 2 standard deviations around the mean, if ..
Give the control limits for 2 standard deviations around the mean, if the mean is 50 and standard deviation is 2. => 46, 92 or 44, 56 or 46, 54 or 48, 52..
Which of the following statement(s) is/are true?I. Standard deviation ..
Which of the following statement(s) is/are true? I. Standard deviation is never negative. II. Standard deviation is always positive. III. Standard deviation is always zero. IV. Standard deviation may be negative or posi..
To calculate the confidence interval for variance or standard deviatio..
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..
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