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Repeat Example 1 for the HDTV game matrix discussed at the beginning of this section:
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- You have the following data: Student A took 2 courses in the Fall semester. His previous CGPA was 3.2. He received GPA 3.5 in the Fall semester. Student B took 5 courses in the Fall semester. Her previous CGPA was 3.9. She received GPA 3.6 in the Fall semester. Student C took 4 courses in the Fall semester. His previous CGPA was 3.6. He received GPA 3.4 in the Fall semester. Using this data, we'll try to build a model using Least Square approximation, that can predict the CGPA of a student in the Fall semester given the number of courses s/he took in Fall, and his/her previous CGPA. (In real life, we'd use many more parameters, but for the sake of the quiz, we are keeping things simple.) The model is as follows - wi x (number of courses) + wz x (previouos CGPA) = GPA in Fall Find the values of wi, and wz using Least Square approximation. (Round off up to 3 decimal points) w, is equal to - wz is equal to - If a student took 4 courses in Fall, and his previous CGPA was 3.7, what would be…arrow_forwardIllustrate an ill condition system with example.arrow_forwardThe pointer is on blue. 50% payout $5 Number of sectors: 4 15% 25% payout $8 payout 10% $12 Payout $15 You are the creator of the game shown above. Your bosses at the casino have told you that you need to have a profit of at least $0.75 per spin, but you can only charge players whole amounts that end in .00 or .50. Such as $4.50 or $7.00 How much should you charge players to play this game? Include a dollar sign in your answer.arrow_forward
- [6] – Statistics Scenario #1A dog enthusiast wanted to see if there was a difference in pit-bull ownership between people in Arcata and Eureka. They obtained a list of registered dog owners from the city of Eureka and the city of Arcata, then they randomly selected people from each list until they had 150 responses from Arcata and 150 responses from eureka. The total number of people from Arcata who reported having a pit-bull was 33. The total number from Eureka was 40 (c) Was the researchers sampling method biased, if so, what kind of bias?(d) Is the data qualitative, quantitative continuous, or quantitative discrete? e) What statistical test should be performed to test the hypothesis?arrow_forwardPart 1- Mutual Funds (Measures of Center and Spread, Boxplots) (Questions 1-7) The values of individual stocks in the stock market can vary wildly. For that reason, investors usually purchase more than one kind of stock to balance out their risk. Some people are comfortable choosing their own blend of stocks. Other people prefer to invest in pre-bundled combinations of individual stocks called mutual funds. In this portion of the project, you will look at two mutual funds, each identified by its stock exchange abbreviation: LEXCX (composed of 22 stocks) and DIA (composed of 30 stocks). LEXCX Mutual Fund The dataset on the left displays the stock symbol and dollar value of each of the 22 stocks in the LEXCX mutual fund on May 15, 2019. For your convenience, the stocks are numbered in the order of their ascending value on this day. 1. Use the dataset to complete the EXACT five-number summary of the # Stock Dollar Value dollar values of the LEXCX mutual fund. Do not round your results 1…arrow_forwardCompanies in the U.S. car rental market vary greatly in terms of the size of the fleet, the number of locations, and annual revenue. In 2011, Hertz had 320,000 cars in service and annual revenue of approximately $4.2 billion. Suppose the following data show the number of cars in service (1,000s) and the annual revenue ($ millions) for six smaller car rental companies. Cars Revenue Company (1,000s) ($ millions) Company A 11.5 120 Company B 10.0 137 Company C 9.0 102 Company D 5.5 37 Company E 4.2 38 Company F 3.3 34 (a) Develop a scatter diagram with the number of cars in service as the independent variable. 160 T 2 160 160 T 160- 140 140 140- 140 120 120 120 120- 100 100 100- 100- 80 80 80 80- 60 60 60 60 ... 40 ... 40 40 ... 40 20 20 20 20 4 6. 8 10 12 14 6. 8 10 12 14 2 4 8 10 12 14 4 8 10 12 14 Cars in Service (1,000s) Cars in Service (1,000s) Cars in Service (1,000s) Cars in Service (1,000s) (b) What does the scatter diagram developed in part (a) indicate about the relationship…arrow_forward
- Companies in the U.S. car rental market vary greatly in terms of the size of the fleet, the number of locations, and annual revenue. In 2011, Hertz had 320,000 cars in service and annual revenue of approximately $4.2 billion. Suppose the following data show the number of cars in service (1,000s) and the annual revenue ($ millions) for six smaller car rental companies. Cars Revenue Company (1,000s) ($ millions) Company A 11.5 120 Company B 10.0 137 Company C 9.0 102 Company D 5.5 39 Company E 4.2 40 Company F 3.3 30 (a) Develop a scatter diagram with the number of cars in service as the independent variable. 160 T 160- 1601 140 140 140 120- E 120- 120- 100 100 100- 80 80 80 CO 60 60 60 40 40 40 20 20 20- 6 8 10 12 14 4 6 8 10 12 14 Cars in Service (1,000s). ● 4 6 8 10 12 14 Cars in Service (1,000) 4 Cars in Service (1,000) Ⓡ 0 4 6 8 10 14 O Cars in Service (1,000) (b) What does the scatter diagram developed in part (a) indicate about the relationship between the two variables? O There…arrow_forwardQuestion 1 In 2015, there will be more Blue A jays than Cardinals. The data table below shows a count of different bird types in Windsor. According to the trends, what prediction about 2015 populations seems likely? Bird Type 2012 2013 2014 In 2015, there will be more Blackbird 201 223 231 B Chickadees than Blackbirds. Seagull 145 203 255 Blue Jay 200 176 152 In 2015, there will be more Blackbirds than Blue jays. Cardinal 301 298 304 Chickadee 144 122 110 Hummingbird 290 285 288 In 2015, there will be more D Cardinals than Crows. Crow 300 322 346arrow_forwardCompanies in the U.S. car rental market vary greatly in terms of the size of the fleet, the number of locations, and annual revenue. In 2011, Hertz had 320,000 cars in service and annual revenue of approximately $4.2 billion. Suppose the following data show the number of cars in service (1,000s) and the annual revenue ($ millions) for six smaller car rental companies. Cars Revenue Company (1,000s) ($ millions) Company A 11.5 118 Company B 10.0 137 Company C 9.0 102 Company D 5.5 39 Company E 4.2 40 Company F 3.3 32 (a) Develop a scatter diagram with the number of cars in service as the independent variable. 160T 160T 140 140 120 . 120 100- 100 80 80- 60 60 . 40 40 20 20- 4 6 8 10 Cars in Service (1,000) 0 6 8 10 0 4 6 8 10 12 14 Cars in Service (1,000) Cars in Service (1,000) (b) What does the scatter diagram developed in part (a) indicate about the relationship between the two variables? O There appears to be a negative linear relationship between cars in service (1,000s) and annual…arrow_forward
- Companies in the U.S. car rental market vary greatly in terms of the size of the fleet, the number of locations, and annual revenue. In 2011, Hertz had 320,000 cars in service and annual revenue of approximately $4.2 billion. Suppose the following data show the number of cars in service (1,000s) and the annual revenue ($ millions) for six smaller car rental companies. Cars Revenue Company (1,000s) ($ millions) Company A 11.5 120 Company B 10.0 137 Company C 9.0 98 Company D 5.5 35 Сompany E 4.2 40 Company F 3.3 32 (a) Develop a scatter diagram with the number of cars in service as the independent variable. 合160, 140- 160 160, 160, 140- 120- 140 140- 120 120 120 100 100 100 100 80 80 80 80 60 60 60 60 ... 40- 20- 40 .. 40 ... 40 20- 20- 20- 6 10 12 2 6 8 10 12 2 6 10 12 2 14 4 14 4 14 6 8 10 12 14 Cars in Service (1,000s) Cars in Service (1,000s) Cars in Service (1,000s) Cars in Service (1,000s) (b) What does the scatter diagram developed in part (a) indicate about the relationship…arrow_forwardCompanies in the U.S. car rental market vary greatly in terms of the size of the fleet, the number of locations, and annual revenue. In 2011, Hertz had 320,000 cars in service and annual revenue of approximately $4.2 billion. Suppose the following data show the number of cars in service (1,000s) and the annual revenue ($ millions) for six smaller car rental companies. Cars Revenue Company (1,000s) ($ millions) Company A 11.5 120 Company B 10.0 133 Company C 9.0 102 Company D 5.5 37 Company E 4.2 42 Company F 3.3 34 (a) Develop a scatter diagram with the number of cars in service as the independent variable. 160T 160T 160 160- 140- 140 140 140 120 120 120 120- 100 100 100 100- 80 80 80 80 60 60 60 60 .. . 40 40 .. 40 40 20 20 20 20 4 6 8 10 12 14 2 4 8 10 12 14 2 4 6 8 10 12 14 2 4 6 8 10 12 14 Cars in Service (1,000s) Cars in Service (1,000s) Cars in Service (1,000s) Cars in Service (1,000s) (b) What does the scatter diagram developed in part (a) indicate about the relationship between…arrow_forwardCompanies in the U.S. car rental market vary greatly in terms of the size of the fleet, the number of locations, and annual revenue. In 2011, Hertz had 320,000 cars in service and annual revenue of approximately $4.2 billion. Suppose the following data show the number of cars in service (1,000s) and the annual revenue ($ millions) for six smaller car rental companies. Cars Revenue Company (1,000s) ($ millions) Company A 11.5 116 Company B 10.0 137 Company C 9.0 102 Company D 5.5 39 Company E 4.2 40 Company F 3.3 34 (a) Develop a scatter diagram with the number of cars in service as the independent variable. 160- 140- 160 160 160 120 140- 140- 140 100 120 120- 120- 80 100 100- 100- 60 80 80 80 40 60 60 60 20 40 40 40 20 20 20 4 6 8 10 12 14 2 4 6 8 10 12 14 2 4 6 8 10 12 14 4 6 8 10 12 14 Cars in Service (1,000s) Cars in Service (1,000s) Cars in Service (1,000s) Cars in Service (1,000s) (b) What does the scatter diagram developed in part (a) indicate about the relationship between the…arrow_forward
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