Based on the text, which of these factors does NOT determine the accuracy of the sample?
A) ?randomness of sample
B) ?sample size
C) ?how the sample is selected
D) ?amount of variation in the population
E) year sample is taken
E
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The individual American states are _____.
A. bicameral systems B. confederal systems C. unitary systems D. monarchies E. dictatorships
Which Supreme Court decision established the doctrine of “separate but equal?”
a. Brown v. Board of Education b. Plessy v. Ferguson c. Shelley v. Kraemer d. Dred Scott v. Sandford
The series of Reform Acts _______
A) allowed for direct election to the House of Lords B) abolished the House of Commons C) Increased the power of the monarchy D) expanding the voting franchise E) caused the replacement of several monarchs
A researcher studying income in poor neighborhoods learns the mean income is $25,000 per year. A family earning $31,000 per year has a $6,000 ______________________.
a. Individual value b. Population characteristic c. Sample statistic d. Deviation from the mean