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What percent of the measurements are found below

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  1. What percent of the measurements are found below the 30th percentile? Found above the 30th percentile?
  2. For the regression line y^ = 3x + 2 what is the best predicted value if x is 7?
  3. Assume that male and female births are equally likely and that the birth of any child does not affect the probability the gender of any other children. Find the probability of at most three girls in ten births. In this problem, which function do you use in TI 84 calculator? (binompdf or binomcdf)?
  4. A quiz consists of 100 multiple choice questions. Each question has 4 possible answers (A-D) and only one answer is correct. If the student guesses the answer to the questions, then what is the probability earn a grade of 70% or higher? 
  5. An unusual event is an event in which the probability exceeds 1. (True or False)
  6. The least squares regression line maximizes the sum of the squared residuals SSR. (True or False?)

Reference no: EM132132978

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