Discover Questions

Calculate μ and σ, where σ is the standard deviation, defined by the following.
σ 2 = ∞ −∞
(x − μ)2p(x) dx? ∜(x-√(x^2-1)) +√(x+√(x^2-1)) =2? A/SDD=C/SID & B/SDD=D/SID A is X SDD is 3.5" SID 40". If A and B length and width & I want answer to with .5" border round A&B then =.6/.8"? Help me answer these please!? How many moles of NAOH are present in 11.5ml of 0.220 M NAOH?