# The lower and upper quartile of standard normal variation are respectively ?

The lower and upper quartile of standard normal variation are respectively ?

A. µ+0.6745σ and µ-0.6745σ

**B. -0.6745 and 0.6745 (Correct)**

C. -0.7979 and 0.7979

D. -0.7979σ and 0.7979σ