C207 Module 1 Study Guide

a Impact b Activities c Outputs d Outcomes - answer-b Activities Which one of the following is NOT an example of big data? a The amount of money collected by taxes b The results of a one-question survey about voting preferences collected from many c Weights of people in the city of Houston, Texas d Incomes of people from St. Louis - answer-a The amount of money collected by taxes Data mining is not useful in: a sorting through a large amount of data. b extracting information from a data set. c deciphering patterns from large databases. d determining the underlying causes of trends. - answer-d determining the underlying causes of trends. A company's revenue is 1.4 million dollars for the year and 400 thousand dollars in the fourth quarter. The same company's costs are 1.2 million dollars for the year and 350 thousand dollars in the fourth quarter. What is the ratio of revenue to costs for the fourth quarter of the year? What is the proportion of revenue in the fourth quarter to total revenue for the year? (Answers in the following form: Ratio, Proportion) The answers are simplified. a 8:7, 2:7 b 8:7, 7:24 c 7:6, 2:7 d 7:6, 7:24 - answer-a 8:7, 2:7 he ratio of revenue to costs for the fourth quarter of the year is 400 thousand to 350 thousand. This is simplified to 8:7. The proportion of revenue in the fourth quarter to total revenue for the year is 400 thousand to 1.4 million. This is simplified to 2:7. The Consumer Price Index (CPI) is an example of a ________. a Simple Index Number b Simple Composite Index c Weighted Index Number d Weighted Composite Index - answer-d Weighted Composite Index The following is a list of prices for a barrel of oil over time: 20 dollars in 1990 15 dollars in 1995 27 dollars in 2000 50 dollars in 2005 75 dollars in 2010 What is the simple index number for the price of oil in 2005? Hint: the base period is 1990. a 70 b 2.5 c 375 d 250 - answer-d 250 The base period is 1990 when a barrel of oil cost 20 dollars. In 2005, a barrel of oil cost 50 dollars. The simple index number is 5020×100=250 . Companies A, B, and C were the three construction companies in Dedge, Minnesota in 2012. Companies A, B, and C built 9, 21, and 15 house additions in 2012, respectively. Company A went out of business after 2012 while Company C seriously expanded. No construction companies were founded between 2012 and 2013. In 2013, Companies B and C built 25 and 29 house additions, respectively. What is the simple composite index of house additions from the construction companies in Dedge, Minnesota for 2013. Hint: the base period is 2012. a 99 b 150 c 125 d 120 - answer-d 120 The simple composite index measures data taken from many different sources and weighs all of the data equally. There were 45 house additions ( 9+21+15 ) in 2012. There were 54 house additions ( 25+29 ) in 2013. Therefore the simple composite index is 54/45×100=120 Which one of the following is NOT a fundamental element of, and essential to, epidemiology? a Proportion b Index Number c Rate d Ratio - answer-b Index Number If the United States had 300 Olympic athletes and 60 of them won a medal while France had 100 Olympic athletes and 9 of them won a medal, which country had a higher prevalence of Olympic athletes winning medals? By what percent?