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6. Rules of summation A sociologist is studying the relationship between parents' ages and their parenting practices. The sociologist collects a random sample of 50 married couples, each of whom has an eight-year-old boy. The sociologist decides to refer to the moms' ages as X and the dads' ages as Y. The sum of the moms' ages in the sociologist's sample is 1,970 years (or, written in symbols, Ex-1,970). The sum of the dads' ages in her sample is 2.130 years (or written in symbols, 2-2,130). Since the sociologist is interested in how the difference in the parents' apes affects their parenting practices, she needs the sum of the differences in years, their ages, or XY-X). The sum of the differences in the parents' ages in the sociologist's sample is The sociologist decides to look at variables associated with the eight-year-old boys' births. To do so, she wants to consider the parents' apes eight years ago at the time of the boys births. The sum of the dads' ages eight years ago, or X(Y-8), is years. The sociologist decides to convert the current ages to decades. The sum of the moms apes in decades, or 20.1X, is decades,

6. Rules of summation A sociologist is studying the relationship between parents' ages and their parenting practices. The sociologist collects a random sample of 50 married couples, each of whom has an eight-year-old boy. The sociologist decides to refer to the moms' ages as X and the dads' ages as Y. The sum of the moms' ages in the sociologist's sample is 1,970 years (or, written in symbols, Ex-1,970). The sum of the dads' ages in her sample is 2.130 years (or written in symbols, 2-2,130). Since the sociologist is interested in how the difference in the parents' apes affects their parenting practices, she needs the sum of the differences in years, their ages, or XY-X). The sum of the differences in the parents' ages in the sociologist's sample is The sociologist decides to look at variables associated with the eight-year-old boys' births. To do so, she wants to consider the parents' apes eight years ago at the time of the boys births. The sum of the dads' ages eight years ago, or X(Y-8), is years. The sociologist decides to convert the current ages to decades. The sum of the moms apes in decades, or 20.1X, is decades,

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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6. Rules of summation A sociologist is studying the relationship between parents' ages and their parenting practices. The sociologist collects a random sample of 50 married couples, each of whom has an eight-year-old boy. The sociologist decides to refer to the moms' ages as X and the dads' ages as Y. The sum of the moms' ages in the sociologist's sample is 1,970 years (or, written in symbols, ZX-1,970). The sum of the dads' ages in her sample is 2,130 years (or, written in symbols, 2Y - 2,130). Since the sociologist is interested in how the difference in the parents' ages affects their parenting practices, she needs the sum of the differences in years, their ages, or X(Y-X). The sum of the differences in the parents' ages in the sociologist's sample is The sociologist decides to look at variables associated with the eight-year-old boys' births. To do so, she wants to consider the parents' ages eight years ago at the time of the boys births. The sum of the dads' ages eight years ago, or X(Y-8), is years. The sociologist decides to convert the current ages to decades. The sum of the moms' ages in decades, or 20.1X, is decades.
Transcribed Image Text:6. Rules of summation A sociologist is studying the relationship between parents' ages and their parenting practices. The sociologist collects a random sample of 50 married couples, each of whom has an eight-year-old boy. The sociologist decides to refer to the moms' ages as X and the dads' ages as Y. The sum of the moms' ages in the sociologist's sample is 1,970 years (or, written in symbols, ZX-1,970). The sum of the dads' ages in her sample is 2,130 years (or, written in symbols, 2Y - 2,130). Since the sociologist is interested in how the difference in the parents' ages affects their parenting practices, she needs the sum of the differences in years, their ages, or X(Y-X). The sum of the differences in the parents' ages in the sociologist's sample is The sociologist decides to look at variables associated with the eight-year-old boys' births. To do so, she wants to consider the parents' ages eight years ago at the time of the boys births. The sum of the dads' ages eight years ago, or X(Y-8), is years. The sociologist decides to convert the current ages to decades. The sum of the moms' ages in decades, or 20.1X, is decades.
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