A researcher is interested in determining if the pattern of traffic stops by the local police indicates a bias for certain colors of car. She takes a random sample of 175 records of traffic stops by the police, observing when they stop three colors of vehicles: blue, white, and red. Which of the following is the correct formula to determine the expected frequency for red drivers?        A. 175 x 1.96 = 343       B. 3 – 2 = 1       C. 3 – 1 = 2       D. 175/3 = 58.33

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A: The frequency table 1 is skewed right as the distribution starts with a low frequency suddenly…

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A: X Frequency  (f) cumulative frequency   (cf) 1 3 3 2 3 3+3=6 3 8 6+8=14 4 12 14+12=26…

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A: The E value for the category can be obtained as E = (Row total × Colum total)/Grand total

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A: Sample size = n = 12

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A:

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A: Given,

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A:

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A:

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A: Solution:-   To find the new variance after removing two observations, we need to calculate the new…

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A: Given Information: Consider the given data: Level Hair Test Fresh brown 55 Fresh blonde 75…

Q: f 1 3 N = 11

A: Solution

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A:

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A:

Q: 3. You are given k|940 = k/78 for k = 0, 1, ..., 12 a) Find the probability that (40) dies between…

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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.