$3($LECTURE $11$c$)$ Assume that the C note of the chickadee call is given when there is an intruder, and that the D note is given when there is food. Also assume that the sender coding matrix is:

$\backslash$table$[[$r$,$condition,$],[$Sende: call note,Intruder,Food$],[$C$,0\mathrm{.}9,0\mathrm{.}05],[$D$,0\mathrm{.}1,0\mathrm{.}95]]$

and that the receiver coding matrix is:

$\backslash$table$[[,$Sender note,$],[$Receiver perception,C$,$D$],[$C$,0\mathrm{.}99,0\mathrm{.}05],[$D$,0\mathrm{.}01,0\mathrm{.}95]]$

Give the overall coding matrix. Would this overall coding matrix make sense if the cost of an intruder is extraordinarily high compared to the value of food?