Answer:
sd= [tex]\sqrt{\frac{S(ni-M)^{2} }{N} }[/tex] with S the sum from i=1 to N
Step-by-step explanation:
the standard deviation is the average separation between the data provided
in this case the standard deviation of the words per page is
sd= [tex]\sqrt{\frac{S(ni-M)^{2} }{N} }[/tex]
with i= each page number, N= total number of pages,
M= average= ∑ni / N , ∑since 1 to N
