• City of Quincy Raffle - A City of Quincy raffle offers one $800 prize, two $400 prizes and seven $100 prizes. Two thousand tickets are sold at $50 each. Find the expectation (from the perspective of the player) it a person buys one ticket.

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A: The given claim is that these teachers differ significantly in their opinion on this issue.

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Q: 2x X-1 X-/

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A: The population proportions difference CI is, (p^1-p^2)±Zp^1(1-p^1)n1+p^2(1-p^2)n2where p^1 and…

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A: The function may be written as y= f(x) Domain: It is the possible inputs of the function. Here it is…

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A: A fair die is tossed 72,000 times. n=72000  Let X be the number of times that 4 comes up on the die.…

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Q: Find the number of roots for the equation. 5x4 + 12x³ – x² + 3x + 5 = 0

A: As we know that the number of roots is equal to the highest power of the polynomial.

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A: Given that Sample size=700 Population proportion=0.20 Level of significance=0.01 We have to Test the…

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A: Find the value of m for four cases.Case 1:

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A: The given equation is y =2x^3 -5x.The values of x =-2 and delta x= 0.1.

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A: We have given that Mean(µ) = 72.6Standard deviations (σ) = 4.78X ~ N (µ, σ )= N(72.6, 4.78)

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A: This question can be solved using the concept of derivatives.

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A: Recall the following fact.

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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.