can we write., let Xi's denote.....
for eg in question bank part 2 question 2.13 , can we have a start as :
let Xi's denoe length of tarmac laid in a day
X ~ N (u=400 m, (sigma) square= (50m)^2)..........[for each Xi]
sumation Xi ~ N (nu= 2000, n sigma^2 = 12500)
no statments above are wrong , right????
or is there sumthing technicaly wrong that i have written.........????
just wondering whetr i hav to specify i=1,2..5
thanku very mch in advance....
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