8676 9o 76 543 210 14. Students in a philosophy class are given 10-point pop quizzes on three con- secutive class days, and the frequency distributions of their scores are given here. Plot a frequency polygon for each distribution, and tell whether the curve is symmetrical, positively skewed, or negatively skewed. Monday f_ Wednesday Friday 10 3 10 1 31 10 1 9. 6. 1 8 8 1 7 4 6. 4. 3 5. 4 2 4 4 3 2 3 1 1 1 1 1 1

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Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.