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問題的種類

英文 高中

為什麼第7題不選D選A,求解??

2676 1st: 43 The scientists decided to light fires that would burn off the gas, figuring that it would only be a few weeks 4. the gas was all gone. They evidently made a miscalculation, as the fires have been burning constantly for over 40 years. In 2010, the president of Turkmenistan VR recommended that the Stater* (should) Ver 5. filled in to limit the amount of gas that is burned. However, no action has yet been taken. Thus, the Door to Hell remains firmly open, drawing tourists from all over the world to gaze into its fiery depths. 事 3. to those who live nearby. 1. Adultimately (B) respectively 2.(A) coming down ( (B) blending in 倒塌 (A) menace FATA 4. (A) until 5 A) was 3 fa (C) approximately (C) giving in 威育恐嚇 (B) hypocrisy 飾 (C)facility 設施) (B) when (C) before to be (B) be Partid 199 a 201 (D) constantly (D) going out Right (D) legacy 產 Dif (D) had been While scientists are 6. to find ways of improving plants, medicine, and human beings, many arguments are being 7. . Some arguments may be personal, social, or economic but more likely, they tend to be moral. And it is believed that genetic engineering will keep on mmm. 工程学 changing us throughout this century. 8. genetic In general, people question the whole use of genetic engineering. engineering will improve the way we grow food and care for our environment, people still question genetic engineering. What may be questioned is how companies may 9. their 2023/01/03 19:55 use. and h how is, c que exp sce in te re C

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數學與統計 大學

急!求救 #6 8 9 如果需要酬勞可私下談 (ex.$70題)

pie participation in informal 6.The National Science Foundation (NSF) sponsored a study on girls' science, technology, engineering, or mathematics (STEM) programs. The results of the study were published in Cascading Influences: Long-Term Impacts of Informal STEM Experiences for Girls (March 2013). The researchers sampled 174 young women who recently participated in a STEM program. They used a pie chart to describe the geographic location (urban, suburban, or rural) of the STEM programs attended. Of the 174 participants, 107 were in urban areas, 57 in suburban areas, and 10 in rural areas. a.Determine the proportion of STEM participants from urban areas. b.Determine the proportion of STEM participants from suburban areas. c.Determine the proportion of STEM participants from rural areas. d. Multiply each proportion in parts a-c by 360 to determine the pie slice size (in degrees) for each location. e.Use the results, part d, to construct a pie chart for geographic location of STEM participants. f.Interpret the pie slice for urban areas. g.Convert the pie chart into a bar graph. Which, in your opinion, is more informative? 7. All high way bridges in the US are inspected periodically for structural deficiency by the FHWA. Data from the FHWA inspections are compiled into the National Bridge Inventory (NBI). Classify each variable below as quantitative or qualitative. a. Length of maximum span (feet). b. Number of vehicle lanes. c. Toll bridge (yes or no). d. Average daily traffic. e. Condition of deck (good, fair, or poor). f. Bypass or detour length (miles). g. Route type (interstate, U.S., state, county, or city) 8. The NBI data were analyzed and the results made available at the FHWA Web site. Using the FHWA inspection ratings, each of the 608,272 highway bridges in the US was categorized as structural deficient, functionally obsolete, or safe. About 13.5% of the bridges were found to be structural deficient, while 3.5% were functionally obsolete. a. What is the variable of interest to the researchers? b. Is the variable of part a quantitative or qualitative? c. Is the data set analyzed a population or a sample? Explain. d. How did the NBI obtain the data for the study?

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