$15.$ Underpricing $($S$14\mathrm{.}2)$ Having heard about IPO underpricingI put in an order to my broker for $1,000$ shares of every IPO he for me$.$ After three months, my investment record is as follows: can get IPOShares PriceInitial Allocated per Return to MeShare A$500107$ B$2002012$ C $1\mathrm{.}0008-2$ D $1223$ a $.$ What is the average underpricing in dollars of this sample of IPOs? b $.$ What is the average initial return on my $"$ portfolio" of shares purchased from the four IPOS that I bid on$?$ When calculating this average initial returnremember to weight by the amount of money invested in each issue "You have just encountered the problem of the winnerscurse." True or false