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- An earthquake in Mexico in 1985 had and intensity level about 125, 000, 000 times the reference intensity. Find the Richter number for that earthquake.arrow_forwardIn Example 5, after how many days are 250 students infected?arrow_forward(b) Use the quadratic regression feature of a graphing calculator to get a quadratic function that approximates the data. y= ²² +t+ (Round to three decimal places as needed.)arrow_forward
- Select one answer. In 1912, the RMS Titanic, a British passenger ship, sank in the North Atlantic Ocean after colliding with an iceberg. 10 points Historians do not know the exact passenger list, so the death toll is estimated. Here is data from the 2201 passengers on board, by cabin class. First Second Third Crew Row Class Class Class totals Died 122 167 528 673 1490 Survived 203 118 178 212 711 Column 325 285 706 885 2201 Totals Wikipedia, RMS Titanic. (2015). Retrieved from: http://en.wikipedia.org/wiki/RMS_Titanic#Survivors_and_victims Which proportions are most useful in analyzing the relationship between passenger class and surviving the Titanic? A. O 122 / 325 and 203 / 325 B. O 203 / 325 and 528 / 706 C. O 203 / 325 and 178 /706 D. O 203 / 711 and 178 / 711arrow_forwardUse a graphing calculator to make a scatter plot of the amounts Leah willaccumulate for years 1 through 5.arrow_forwardIdentify the methods of computing dispersion?arrow_forward
- A statistics professor kept attendance records and recorded the number of absent students per class. This data is displayed in the following histogram with the frequency of each number of absent students shown above the bars. How many total classes do these data represent?arrow_forwardPark City, Utah was settled as a mining community in 1870 and experienced growth until the late 1950s when the price of silver dropped. In the past 40 years, Park City has experienced new growth as a thriving ski resort. The population data for selected years between 1900 and 2009 are given below. Park City, Utah Year 1900 1930 1940 1950 1970 1980 1990 2000 2009 Population 3759 4281 3739 2254 1193 2823 4468 7341 11983 (a) What behavior of a scatter plot of the data indicates that a cubic model is appropriate? O a change in concavity and neither a relative maximum nor a relative minimum O a change in concavity and both a relative maximum and a relative minimum O no change in concavity and an absolute minimum O no change in concavity and an absolute maximum (b) Align the input so that t = 0 in 1900. Find a cubic model for the data. (Round all numerical values to three decimal places.) p(t) = (c) Numerically estimate the derivative of the model in 2007 to the nearest hundred. p'(107) =…arrow_forwardplease answer 8d, e, and f.arrow_forward
- A website that reviews recent movies lists 6 five-star films (the highest rating), 17 four-star films, 12 three-star films, 9 two-star films, and 6 one-star films. Make a frequency table for the data set. Include columns for relative frequency and cumulative frequency. Complete the table. (Type integers or decimals rounded to the nearest tenth as needed.) Stars Frequency Relative frequency Cumulative frequency 5 %arrow_forwardAbdomen data: 83.0, 87.9, 85.2, 88.6, 77.1, 85.3, 100.0, 94.4, 81.9, 88.5, 82.5, 100.5, 76.5, 86.4, 90.7, 83.6, 106.8, 77.6, 102.9, 90.9, 79.7, 73.9, 79.1, 72.8, 88.2, 100.1, 89.6, 95.9, 98.8, 76.3, 83.5 105.0, 90.8, 83.5, 84.5 101.8, 76.6, 76.4, 88.7, 92.4, 81.2, 91.6, 97.5, 80.0, 88.7, 100.5, 95.6, 92.1, 96.4, 74.6, 83.4, 106.0, 96.4, 92.8, 95.1, 90.4, 100.4, 115.9, 90.8, 81.9, 75.0, 90.3, 90.3, 108.8, 79.4, 83.2, 110.3, 91.6, 92.7, 76.0, 79.5, 86.1, 104.5, 104.6 Assume that the abdomen circumference of males have a distribution that isapproximately bell-shaped. Using the mean (= 89.7) and standard deviation (=9.9) as estimates of the population mean and standard deviation, a. Construct a diagram, using the Empirical Rule, to illustrate the percentagesof data values in each of the 8 sections that diagram includes.b. Between what two measurements will about 95% of the abdomencircumferences fall?arrow_forwardA given data:891, 937, 959, 1017, 1047, 1097, 1169, 1173, 1184, 1235, 1266, 1345, 1353, 1357, 1391, 1414, 1453, 1524, 1557, 1581, 1583, 1590, 1658, 1685, 1690, 1734, 1744, 1765, 1776, 1783, 1783, 1790, 1797, 1849, 1862, 1888, 1894, 1895, 1901, 1906, 1928, 1941, 1949, 1952, 1960, 2022, 2037, 2048, 2052, 2058, 2067, 2103, 2109, 2113, 2163, 2178, 2240, 2245, 2269, 2288, 2452, 2651, 2668, 2886, 2921, 3045, 3276, 3356, 3439, 3749, 4387, 4437, 4578, 4899, 5000, 5290, 5404, 5867, 6128, 6666, 7103, 7757, 7999, 8019, 8773, 9296, 9475, 9595, 9838, 10016 We need to create a frequency distribution table show your solutionsarrow_forward
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