A. Determine whether the situation tells abouta Statistic ora Parameter. 1. Thereare 2,140 marathon runners who signed up, and 100% had a drink at least 3 bottles of water along the course. 2. Thirty students out of the whole batch who win a mean percentage score of82% in the Diagnostic test 3. Seventy percent of the registered voters turned outto vote. 4. The five presidential candidates pledged fairnessand honesty. 6. The Network reported 7 election-related violence. Situation: Each ofthe 30 basketball high schoolteams has 12 players. The organizerwants to have a quick survey to hnow the avernge heightof the players. B. Analyze the given situation below and then identity the type of random sampling methods being illustrated in each item. (Cluster, Stratified, Simple and Systematic) Situation: Ench of the 30 basketball high school teams has 12 players. The organizerwants to havea quick survey to know the avernge height of the players. 6. Each team will be asked to place papers with its players' names into a separate fishbowl and randomly drew out five names. The five names from each team will be combined to make up the sample. 7. The organizer lists all the players ina sheet of paperand then assigns a unique numberfor each. Sixty numbers will be picked to get the samples. 8. All players will be groupedaccording to theirage and will randomly choose players from each group to measure their height The organizer createda listof all players, decided to survey every sixth name on the list and laterasked those players thatwere selected. 10 A ttam is randomly selected to answer the question priorto the study.

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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.