2 The scatterplot shows a mother's height (in cm) and her daughter's height (in cm). 180 170 160 150 150 160 170 180 Mother's height (cm) a Copy the scatterplot and draw a line of best fit by eye. b Describe the strength of the relationship as strong, moderate or weak. c Estimate the daughter's height if the mother's height is 170cm. d Estimate the mother's height if the daughter's height is 162cm. Daughter's height (uɔ)

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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.