Code.org Data Unit 5 Review

Front

Which of the following could the photographer NOT do based on the metadata of her photographs?
- Filter photos to those taken in the last week
- Filter photos to those taken in a particular country
- Filter photos to those taken of buildings
- Filter photos to those taken with her favorite camera
- Filter those taken in the afternoon

Back

Filter photos to those taken of buildings

Front

Back

Biggest challenges in travel.

Front

Which column of data might be able to be visualized or analyzed but first would need to be cleaned? Options: How Travel, How Long, Biggest Challenges, Time Arrive

Back

How Long

Front

Which information could likely NOT be found with the data collected?
- Whether students who are new to the school take longer to get to school than other students
- The average time it takes students to get to school
- The most common travel mode students use to get to school
- Whether students who arrive to school later take longer to get to school

Back

Whether students who are new to the school take longer to get to school than other students

Front

The chart above shows the frequency of searches for the words "pencil" and "pen" over a 5 year period. Which of the following is the best interpretation of the chart above?

Back

At any point in time there are typically more people searching for the word "pen" than "pencil"

Front

The mayor of a city is interested in learning what goals are most important for residents of the city. Members of her staff visit one of the many neighborhoods in the city and ask 20 residents to fill out a survey. The mayor is concerned that the survey may be biased and not accurately reflect the overall interests in her town. Which of the following strategies is MOST likely to address concerns about the data being biased or inaccurate: Finding the same people surveyed previously to ask more detailed questions, Visiting the same neighborhood to collect more survey responses, Visiting multiple new neighborhoods to collect more survey responses, Having her staff collect the data using an app rather than paper surveys, Adding more staff to verify that the responses were accurate?

Back

Visiting multiple new neighborhoods to collect more survey responses.

Front

In which of the following situations would parallel systems MOST likely be used to help analyze data? Data analysis involving two or more columns of data, Data analysis involving both string and numeric data, Data analysis involving large datasets, Data analysis that could result in two or more different types of visualizations, Analysis completed by a team of coders

Back

Data analysis involving large datasets

Front

Which of the following conclusions is BEST supported by the scatter plot? Most dogs breeds have a maximum weight of 100 lbs or more, Most dog breeds have a maximum life span of 10 or fewer years, All dog breeds that weigh less than 50 pounds have a maximum lifespan of more than 10 years, No dog breeds that weigh more than 150 pounds are expected to live more than 10 years., A longer max weight causes a lower max life span.

Back

All dog breeds that weigh less than 50 pounds have a maximum lifespan of more than 10 years.

Front

Which of the following conclusions is BEST supported by the scatter plot?
Dog breeds with a higher maximum weight tend to have shorter maximum lifespans
All dog breeds tend to have the same average lifespan
Dog breeds with a higher maximum weight tend to have longer maximum lifespans
Older dogs weigh more than younger dogs
Higher maximum weights cause a dog's life span to decrease.

Back

Dog breeds with a higher maximum weight tend to have shorter maximum lifespans

Front

What is the most common size of states?

Back

The most common size of states is between 50,000 and 100,000 square miles.