The number of people killed in each state from passenger vehicle crashes for a specific year is shown.
Find the range, variance, and standard deviation unless the question asks for something different. Assume the data represent samples, and use the shortcut formula for the unbiased estimator to compute the variance and standard deviation.
Answer to relevant QuestionsFind the range, variance, and standard deviation for the data in Exercise 17 of Section 2–1. In a study of reaction times to a specific stimulus, a psychologist recorded these data (in seconds). Class limits Frequency 2.1–2.7 .......12 2.8–3.4 .......13 3.5–4.1 .........7 4.2–4.8 .........5 4.9–5.5 ...The lengths (in feet) of the main span of the longest suspension bridges in the United States and the rest of the world are shown below. Which set of data is more variable? United States: 4205, 4200, 3800, 3500, 3478, 2800, ...The average college student produces 640 pounds of solid waste each year. If the standard deviation is approximately 85 pounds, within what weight limits will at least 88.89% of all students’garbage lie? Use this data set: 10, 20, 30, 40, 50 a. Find the standard deviation. b. Add 5 to each value, and then find the standard deviation. c. Subtract 5 from each value and find the standard deviation. d. Multiply each value by 5 ...
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