The bond's duration is the sum of the present value of each payment weighted by the time period in which the payment is received, with the resulting quantity divided by the price of the bond.

Therefore, solve for the bond's duration given the following variables:

A $$1,000$ par bond is priced at $95\%$ of par, the bond's annual coupon rate is $6\%,$

and the bond has $4$ vears to maturity.

Additionally, show your calculator's function keys for the $5^{th}$ column titled, "What is the Present Value Interest Factor at $?\%"$

$PV=,FV=,PMT=,N=,$ and $I=$dots and CPT key $=?$