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Homework answers / question archive / Question 17 (4 points) Provided below are the sizes of 15 farms in acres, randomly selected from the state of Oregon
Question 17 (4 points) Provided below are the sizes of 15 farms in acres, randomly selected from the state of Oregon. Find the mean area for these 15 farms 1.920 149 252 494 485 425 184 385 345 85 114 507 255 252 432 419 acres 252 acres 345 acres 10 res Question 18 14 point Refer to the sample space table below. What wethods in favor of rolling a single obom with a rol of twoice What we the odds 1 1 3 222222 5 SSSSS ARABEO Ostave 65 Om to 5:15 in 1551 Question 19 (4 points) Suppose that the result of a public opinion poll shows that just 10% of people would be willing to give up their cell phone for 1 week in exchange for $100. How many people would need to be surveyed in order to have a margin of error of +2%? 900 people 1,125 people 675 people 450 people Question 20 (4 points The children at a certain school were asked what they prefer to drink with their lunch, and the following table summarizes the children's responses Duik Percentage 46 milk chocolate milk 26 w 13 5 her 10 The school only serves milk, chocolate milk, or water with lunch. What is the probability that the first student in line for lunch will be served their preferred beverage with their lunch? 0.39 0.61 0.51 0.49 Question 5 (4 points) Assume a data set is normally distributed with mean 13 and standard deviation 3.5. If the data set contains 50 data values, approximately how many of the data values will fall within the range 9.5 to 16.5? 3415 34.1% 0.15 13.6% 015 X-2 X X X X+21 X+30 34 9 12 ? 48
