Time left 1 Some results of Covid-19 tests are not true although those have widespread usage. Let's suppose that a diagnostic test has 98% accuracy and 50% of all people have Covid-19. If a patient tests positive, please find the probability that they actually have the disease. Ola. 0.50 0.98 0.02 Oid. 0,99

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Q: part 2 of question

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A: Given:

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A: X1¯=8.5,X2¯=10.5,n1=n2=36,σ1=2.9andσ2=2.7

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A: First factor the equation

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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.