Given this diagram, calculate the join cost given $3$ memory page. Explain your reasoning. My guess would be that if I have $3$ memory page would be $2$ on the outer relation Sailors and $1$ on the inner relation Reserves so my guess would be $2+(1*188)$ but others have put $3+(3*188)$ so I$\text{'}$m confused. Please also do the join calculation assuming that we're giving $4$ memory pages. I want to see the difference. Thanks!