Chi-Squared Distribution - GRE Subject Test: Math
Card 0 of 1
Question
follows a chi-squared distribution with 
degrees of freedom and 
through 
are independent standard normal variables.
If 
, what is 
?
If
Answer
Use the fact that the sum of 
squared standard and independent normal variables follows a chi-squared distribution with 
degrees of freedom.
Use the fact that the sum of
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