teach me step by step please

OUESTION $4[$Total: $25$ marks$]$

Mr$.$ Chan, the manager of a commercial bank loan department, must decide on allocation of loans.

He can choose strategy A$,$ strategy B or not to provide any loan. The profit $($RM$)$ from each

alternative depends on the economic conditions in the following table:

a$)$ Determine the best investment using the following decision criteria:

$($i$)$ Maximax

$($ii$)$ Maximin

$($iii$)$ Equally likely criterion

$($iv$)$ Criterion of realism, using $=0\mathrm{.}6$

$($v$)$ Minimax regret criterion

b$)$ Based from the above table provided, Mr$.$ Chan estimates the probabilities of good market,

average market and poor market are $0\mathrm{.}4,0\mathrm{.}5$ and $0\mathrm{.}1$ respectively.

$($i$)$ Construct an expected opportunity loss $($EOL$)$ table.

$($ii$)$ Determine the best decision using minimum EOL as the decision criterion.