Question 473267
a)


{{{N(a)=2.5*sqrt(a)}}}



{{{N(66)=2.5*sqrt(66)}}}



{{{N(66)=2.5*8.12403840463597}}}



{{{N(66)=20.31009601159}}}



Round up to get 21. So you'll need 21 spaces if the average number of arrivals is 66.


--------------------------



{{{N(a)=2.5*sqrt(a)}}}



{{{N(100)=2.5*sqrt(100)}}}



{{{N(100)=2.5*10}}}



{{{N(100)=25}}}



So you'll need 25 spaces if the average number of arrivals is 100.