Lab6_McGovern

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University Of Connecticut *

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1010

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Computer Science

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Apr 3, 2024

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Lab 6 Question 6.1 How many counties in California had a 2010 population of more than 500,000 persons? There were 16 counties in California in 2010 that had a population of more than 500,000 people. Question 6.2 How many counties in California had a 2010 population of less than 50,000 persons? There were 15 counties in California in 2010 that had a population of less than 50,000 people Question 6.3 How many counties in California had a 2010 population of more than 50,000 persons but also fewer than 100,000 persons? There were 8 counties in California in 2010 that had a population of more than 50,000 but fewer than 100,000 people. Question 6.4 What is the combined total 2010 population of these three counties? The combined total 2010 population of Los Angeles, San Diego, and Orange county is 15,924,150. Question 6.5 Why did you use OR instead of AND as the Boolean connector between the queries each time? How would the results have been different if you had used AND instead of OR each time in this compound query? In this specific scenario the use of OR was because we were looking for the individual counties. By this I mean we were seeking for two separate counties, Los Angeles or San Diego, if we used the Boolean connector AND it would have tried to sear for a single county named Los Angeles San Diego. Basically by selecting OR it allows for Qgis to select a county with either one of the three names, if you selected AND it would try to find 1 county with all three names in it. Question 6.6 How many points are in the Fire Stations layer? There are 3,181 points in the fire station layer Question 6.7 How many points are in the hospital layer? There are 564 points in the Hospitals layer. Question 6.8 How many fire stations are in Ventura County? How many fire stations are in Sutter County? There are 48 fire stations in Ventura County and there are 12 in Stutter County
Question 6.9 How many hospitals are in Ventura County? How many fire stations are in Sutter County? There are 12 hospitals in Ventura County and there are 2 hospitals in Stutter County Question 6.10 In what county is the Yurok Volunteer Fire Department located? The Yurok volunteer Fire Department is located in Humboldt County Question 6.11 In what county is Ukiah Valley Medical Center located? The Ukiah Valley Medical Center is located in Mendocino County. Question 6.12 How many fire stations are within a 1-mile radius of the hospitals? Of all the hospitals in California, there are 463 fire stations within a 1 mile radius of them Question 6.13 In which county is the California state capitol building? California State capitol building is located ins Sacramento County Question 6.14 How many hospitals are within 5 miles of the California state capitol building? There are 5 hospitals within 5 miles of the California State Capitol Building Question 6.15 How many fire stations are within 5 miles of the California state capitol building? There are 19 fire stations that are within 5 miles of the California state capitol.
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