Consider the yields (as an interest rate, in percent per year) of municipal bonds, as shown in Table 3.9.1.
a. Construct a histogram of this data set.
b. Based on the histogram, what values appear to be typical for this group of tax-exempt bonds?
c. Describe the shape of the distribution.

TABLE 3.9.1 Yields of Municipal Bonds Issue CA EdFcsAthRefRev CapProjectsFinAuthFL Chcg ILarptRvSr2001 Mdwy ChogiLCOSr2001A CleveOH arptRev200 ClrdoSprgscO UtilsysSub Yield 4.91% 5.18 5.34 5.27 5.21 5.16 TABLE 3.9.1 Yields of Municipal Bonds-cont'd ClrkCoNVarptSysRev200 Detoit MI wtr sply Sys 5,19 DL Ar Rpds Tmst TX Est Bay Mud CA wtr Sub HghhdCoHithfes FL hospRV Hnlucty&cnylHl Wstwr Sy LA Comm Coll Dist CA 5.01 5.46 Meto WAS arpt Auth Sys MI & te trkine funed 5.16 5.44 5.64 MO Hth & Ed FacAuth MO Hth & Ed FacAuth NH Hith &Educ Fac NYC Mn Wtr Fin Auth R St NYC Mn Wir Fin Auth Ri St NYS Drmtry AthRv S2001 PA Tpke Comm Rgr fee Phil Ind Dev Ath Pa arpRV Phil PAgas worksRv 3rd St Plm Bch Co Schl Bd FL PR Publ fn Corp 2001Sr PrtoRico Elec Pwt Auth Rv PrtoRico Pub Fin Corp PttoRico pub imprvent Rnco Comg Rdv Agri CA tax Seattle WA muni Lt pwr imp 5.12 5.03 5.06 5.00 TmpByWtr FL util SysRf Impr VA Cg Bldg Ath ed fos Rv