P, Q, R da →t

Lanƙwasai 3 a kan slide suna nuna yankuna 3 a ƙarƙashin normal curve. ita ce $\displaystyle P(t)$: yankin da ke hagu na $\displaystyle t$. ita ce $\displaystyle Q(t)$: yankin da ke tsakanin 0 da $\displaystyle t$. ita ce $\displaystyle R(t)$: yankin da ke dama na $\displaystyle t$. yana daidaita ƙimar $\displaystyle x$: yana debe matsakaici sannan ya raba da standard deviation na dukan jama'a. Amsoshin suna da wurare 6 na decimal.