AP CSP Unit 9

What is the approximate maximum number of crashes involving wildlife in a single year?

320,000

Here is a graph taken from a Federal Highway Administration Research and Technology publication. The graph shows the total number of car accidents that occur in the US and the total number of car accidents involving wildlife in the US. Use this graph to answer all of the following questions. What is the approximate maximum number of all crashes that occurred in a single year?

6,800,000

Which of the following statements is an example of computer readable data?

A digital spreadsheet filled with measurements about the air quality of different major cities

Suppose you want to make a visualization that shows how many students bought certain quantities of candy from the vending machine during the month of September. Of the choices below, which chart would best convey this information to the person looking at the graph?

Histogram

What is data? I. Computer readable information II. Information collected about the physical world III. Programs that process images IV. Graphs and charts

I, II

Shown here is a bar chart comparing the number of people on welfare against the number of people with full time jobs. What is misleading about this visualization?

The Y Axis is truncated and not labeled, making the larger bar appear 4 times as large as the smaller bar when it's really only a 7% increase

Approximately how many crashes occurred that involved moose?

The graph does not give enough information

Which of the following statements is true about data visualizations?

Visualizations take many forms, from tables to charts to images.

Which of the following statements is NOT a benefit of using computers to process data?

Websites can spy on people and gather large amounts of personal data without the user knowing.

The video described several different kinds of charts that we commonly use to visualize data. In which of the following would one of the charts described help to accomplish the accompanying task described?

Your school wants to track how many people attend the football games over time throughout the school year.

A natural science museum opened a new display that lets the visitors view animations of how the health of a coral reef varies based on water temperature, pollution levels, and the number of fish living around the reef. The visitors are able to choose a numerical value for each of the conditions. The exhibit's animations are determined by using a database to look up how healthy the coral reef is at the particular settings the visitor chooses and displaying a corresponding picture. What is one advantage of using an interactive exhibit like this instead of showing a poster with the same information?

By allowing the visitors to interact with the exhibit, the visitors will be able to understand coral reefs better.

Polly and Sergei are working on a project to explain how the rise in oil prices is leading to a rise in lunch prices at their school. Polly wants to have a chart showing the oil prices every day over the past 18 months and a different chart showing the lunch prices every day over the past 18 months. Sergei argues that having two separate charts won't show the relationship between oil prices and lunch prices. He also thinks that the charts are showing too many data points. Instead, he wants to use a program to make a chart that shows both the oil prices and the lunch prices on the same chart. In addition, rather than plotting the prices for every day, he only wants to chart the average monthly prices for oil and lunch. Why would Sergei's approach make it easier for other people to analyze the data than Polly's approach?

By transforming and summarizing the available data, Serge's chart would more effective in showing any trends that may have occurred.

Which of the following are ways that data is collected about you: I - Websites store data that tracks how you use the website II - Websites store cookies in your browser so that the next time you visit the website things like your profile login and recent activity are saved III - Some apps store geolocation information from your phone to track your location IV - Transaction data is stored by credit card companies when you purchase things with a credit card

I, II, III, and IV

Which of the following statements describes how mobile devices, the use of computers in more and more everyday interactions, and the ability to connect with other devices almost anywhere are changing society? I. People are able to use mobile devices for new applications such as finding directions or finding restaurants II. Data can be collected from thousands of sources and can be combined to provide new services to individuals and companies III. Buildings, cars, classrooms, and offices can now be engineered with sensors to automate tasks like adjusting the thermostat or even driving IV. Data that is collected can be used to identify social problems

I, II, III, and IV

What other information could you figure out using the information you can read off of the graph? I. The average number of crashes involving wildlife from 2000 - 2004 II. The average number of total crashes that happen in July from 1990 - 2004 III. The minimum number of crashes in a year involving wildlife from 1990 - 2004 IV. The total number of crashes that happened from 2000 - 2016

I, III

Which of the following statements are true about using visualizations to display a dataset? I. Visualizations are visually appealing, but don't help the viewer understand relationships that exist in the data II. Visualizations like graphs, charts, or visualizations with pictures are useful for conveying information, while tables just filled with text are not useful. III. Patterns that exist in the data can be found more easily by using a visualization

III only

News reporting agencies often want to find the public's opinion on current events. One particular agency is considering two different strategies to collect this data by collecting responses to online surveys. The two strategies are outlined below. Strategy One: 1. Uses a database to store all of the survey responses 2. Stores some data as text and some data as numbers 3. Will track extra information about the survey taker that won't be publicly visible Strategy Two 1. Uses a single spreadsheet to store all of the survey responses 2. Stores all data as numbers 3. Will not track any information other than the survey responses Which of the following statements is the most accurate comparison of these strategies?

Strategy One will allow the agency to conclude more about the public's opinion because it tracks extra metadata, while Strategy Two will make it hard to find trends and access particular pieces of the data.

Approximately how many of All Crashes happened in the winter?

The graph does not give us enough information.

What can we reasonably conclude from this data visualization?

The highest interest in flu vaccines occurs in October each year, and will likely continue to occur in October in future years