An educator wants to determine whether a new curriculum significantly improves standardized test scores for fourth grade students. She randomly divides 100 fourth-graders into two groups. Group 1 is taught using the new curriculum, while group 2 is taught using the traditional curriculum. At the end of the school year, both groups are given the standardized test and the mean scores are compared. Determine whether the sampling is dependent or independent. Indicate whether th response variable is qualitative or quantitative. Determine whether the sampling is dependent or independent. O A. The sampling is dependent because the individuals selected for one sample do not dictate which individuals are to be in a second sample. O B. This sampling is independent because the individuals selected for one sample do not dictate which individuals are to be in a second sample. OC. The sampling is dependent because the individuals selected to be in one sample are used to determine the individuals to be in the second sample. OD. The sampling is independent because the individuals selected to be in one sample are used to determine the individuals to be in the second sample.

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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.