Question: This test: 50 point(s) Test: Final Exam (Written Portion) Question 5 of 11 possible This question: 2 Submit test point(s) possible Assume that adults have

This test: 50 point(s) Test: Final Exam (Written Portion) Question 5 of 11 possible This question: 2 Submit test point(s) possible Assume that adults have IQ scores that are normally distributed with a mean of p = 100 and a standard deviation a = 20. Find the probability that a randomly selected adult has an IQ less than 140. Click to view page 1 of the table, Click to view page 2 of the table. The probability that a randomly selected adult has an IQ less than 140 is]- (Type an integer or decimal rounded to four decimal places as needed.) This test: 50 point(s) est: Final Exam (Written possible Portion) Question 6 of 11 This question: 4 Submit test pointis) possible Find the regression equation, letting the first variable be the predictor (x) variable. Using the listed lemon/crash data, where lemon imports are in metric tons and the fatality rates are per 100,000 people, find the best predicted crash fatality rate for a year in which there are 525 metric tons of lemon imports. Is the prediction worthwhile? Lemon Imports 231 265 362 484 544 0 Crash Fatality Rate 16 15.8 15.5 15.4 15.1 (Round the y-intercept to three decimal places as needed. Round the slope to four decimal places as needed.) The best predicted crash fatality rate for a year in which there are 525 metric tons of lemon imports is fatalities per 100,000 population. (Round to one decimal place as needed.) Is the prediction worthwhile? O A. Since all of the requirements for finding the equation of the regression line are met, the prediction is worthwhile. O B. Since common sense suggests there should not be much of a relationship between the two variables, the prediction does not make much sense. O C. Since the sample size is small, the prediction is not appropriate. O D. Since there appears to be an outlier, the prediction is not appropriate
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