The following data in Table 1 represent the travel time (in minutes) for nine students enrolled in Statistics course. Treat the nine students as a population. Table 1 Student Danielle Chin Jieh Sze Ho Ying Ying Yap Teck Yunn Nur Hazrina Harun Travel Time 39 21 32 Mohd Naqiuddin 30 Norhaida Hassan 45 Sheela Ann 11 Olivia Peter 12 Puteri Dian 39 a) Calculate the mean and median of the travel time. b) Calculate the range and the population standard deviation of the travel time

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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.