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id - Student ID.
	 
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gender - Student's gender, with levels female and male.
	 
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race - Student's race, with levels african american, asian, hispanic, and white.
	 
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ses - Socio economic status of student's family, with levels low, middle, and high.
	 
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schtyp - Type of school, with levels public and private.
	 
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prog - Type of program, with levels general, academic, and vocational.
	 
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read - Standardized reading score.
	 
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write - Standardized writing score.
	 
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math - Standardized math score.
	 
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science - Standardized science score.
	 
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socst - Standardized social studies score.