OLDZA - Outline Copy Resize aste Select Rotate Q Brushes Size Color Color 2 Clipboard Image Tools Shapes Chlorine concentration In a municipal water supply is a uniformly distributed random variable that ranges between 0.71 ppm and 0.90 ppm. point (a) What is the mean chlorine concentration? (Round your answer to 2 decimal places.) 2 Mean chlorine concentration ppm point (b) Calculate the standard deviation. (Round your answer to 4 decimal places.) eBook Standard deviation ppm (c) What is the probability that the chlorine concentration will exceed 0.77 ppm on a given day? (Round your answer to 4 decimal places) Probability (d) What is the probability that the chlorine concentration will be under 0.74 ppm? (Round your answer to 4 decimal places.) Probability (e) What Is the probability that the chlorine concentration will be between 0.84 ppm and 0.89 ppm? (Round your answer to 4 decimal places.) Probability 3 In Northern Yellowstone Lake, earthquakes occur at a mean rate of 1.2 quakes per year. Let Xbe the number of quakes In a given year. (a) Justify the use of the Poisson model. points Earthquakes are random and Independent events. O Earthquakes are not Independent events. 5 O Earthquakes occur at regular Intervals. A sam minute The 9 (b) What Is the probability of fewer than three quakes? (Round your answer to 4 decimal places.) points Probability (c) What is the probability of more than five quakes? (Round your answer to 4 decimal places.) - Book Probability 1914 x 901px 985, 498px Type here to search hello AntHome X Gradebook X Question 5 - Wk 3 - Practice: V X + ezto.mheducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%252Fvle.phoenix.ed.. # Practice: Wk 3 Exercise [due Day 5] i Saved Help Save & Exit Submit k my work mode : This shows what is correct or incorrect for the work you have completed so far. It does not indicate completion. Return to question A sample of 40 songs from a student's iTunes playlist showed a mean length of 3.542 minutes with a standard deviation of 0.311 minute. Construct a 95% confidence interval for the population standard deviation. (Round your answers to 4 decimal places.) The 95% confidence interval is from 0.0492 x to 1.96 XColor Color 2 Edit Edit with colors Paint 3D Colors ppm and 0.90 2 On average, 40 percent of U.S. beer drinkers order light beer. decimal places.) (a) What is the probability that none of the next eight customers who order beer will order light beer? (Round your answ points Probability (b) What Is the probability that one of the next eight customers who order beer will order light beer? (Round your answer places.) o 4 decimal Probability (c) What is the probability that two of the next eight customers who order beer will order light beer? (Round your answer places.) places.) Probability (d) What is the probability that fewer than three of the next eight customers who order beer will order light beer? (Round wer to 4 decimal to 4 decimal places.) Probability (e-1) Construct the probability distribution, (Round your answers to 5 decimal places.) X P(X ) Cumulative probability N 040OOC es In a given year. 5 A sample of 40 songs from a student's ITunes playlist showed a mean length of 3.542 minutes with a standard deviation of 0.311 minute. Construct a 95% confidence Interval for the population standard deviation. (Round your answers to 4 decimal places.) The 95% confidence interval is from to points A random sample of population standard d Book The 95% confidence points References W X DELL Hasply Capitol www.CapitolHH.com annual capitol admits Home Health our Hospice