If X is N(7,4), find $\displaystyle P[15.364 \le (X-7)^{2} \le 20.096]$. Thank you!
Follow Math Help Forum on Facebook and Google+
standardize to Z~N(0,1) then Z^2~chi(1) P(3.841<Z^2<5.024)=0.975-0.95=0.025
View Tag Cloud