To determine the bank's expected loss, we need to calculate the expected loss given default (LGD) and then use the annual expected default rate to find the total expected loss.

Loan Amount (Exposure at Default, EAD):$100,000

Collateral:$55,000

Net Exposure (EAD - Collateral):$100,000 - $55,000 = $45,000

Loss Given Default (LGD):50% of Net Exposure????????????=50%×$45,000=$22,500LGD=50%×$45,000=$22,500

Annual Expected Default Rate:2%

Expected Loss:Annual Expected Default Rate × LGDExpected Loss=2%×$22,500=0.02×22,500=$450Expected Loss=2%×$22,500=0.02×22,500=$450

Hence, the expected loss due to default is $450, but we need to find the total expected loss including the interest, which is typically considered the exposure part.

Total expected loss is primarily focusing on the loan risk and the direct calculation of LGD × Default Rate.