The format is attached to the variable LITERACY, but the value of the LITERACY
variable is still internally stored as a numericvariable. Thisis verified by a PROC
MEANS statementwhose output is provided in Display 8.7. In Display 8.7, all eight
nonmissingvariable values are used in the summary statistics, including the twoinvalid
entries.
Display 8.7Output from PROC MEANS
Variable N MeanStd DevMinimumMaximum
literacy
literacy_too
8
8
49.5812500
49.5812500
65.6923019
65.6923019
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