A.+1.96s B.±1.96s C.P2.5-P97.5 D.<P95 E.>P2.5
A.5% B.95% C.97.5% D.95.5% E.92.5%
A.μ+1.96σ B.μ-1.96σ C.μ+2.58σ D.μ-2.58σ E.μ+1.64σ