Distance $[$cm$]$ Latency $[$ms$]$

$55\mathrm{.}2$

$75\mathrm{.}5$

$85\mathrm{.}8$

$10\mathrm{.}56\mathrm{.}2$

$136\mathrm{.}31.$ Explain the reason for the different latencies for different recording sites and comment on the shape of the graph. $2.$ Use your graph to calculate the velocity of conduction and the delay at zero distance.