The officials of major league baseball have crowned a batting champion in the National League each year since 1876. A sample of winning batting averages is listed in the table:

a. Construct a relative frequency histogram to describe the batting averages for these 20 champions.
b. If you were to randomly choose one of the 20 names, what is the chance that you would choose a player whose average was above .400 for his championship year?

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Name Average Year 372 2000 1915 1917 1934 1911 1898 1924 1963 1992 1954 1975 1958 1942 1948 1971 1996 1961 1968 1885 2009 Todd Helton Larry Doyle Edd Roush Paul Waner Honus Wagner Willie Keeler Roger Hornsby Tommy Davis Gary Sheffield Willie Mays Bill Madlock Richie Ashburn Emie Lombardi Stan Musial Joe Torre Tony Gwynn Roberto Clemente Pete Rose Roger Connor Hanley Ramirez 320 341 362 334 379 424 326 330 345 354 350 330 376 363 353 351 335 371 342