Question

statics formuals...??

Answer 1



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The symbol 'σ' represents the population standard deviation. The term 'sqrt' used in this statistical formula denotes square root. The term 'Σ ( Xi – μ )2' used in the statistical formula represents the sum of the squared deviations of the scores from their population mean.

Answer 2

***mean = sigma fixi / sigma fi
median = it is the value of the middle most observation value = n +1 /2 if n is odd
if n is even value of median =n /2
mode : is the most frequently occurring observations
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