BJC AP CSP Unit 5 Lab 3

BJC AP CSP Unit 5 Lab 3

Turning Data into Information

Go to: tiny.cc/U5L3P1

Explore the graph (with slider)

Open Ended

About the graph (http://tiny.cc/U5L3P1)

1. What does each point represent?

2. What does each axis represent?

3. Reveal a hint about the axes.

4. What do the colors represent?

5. What does the size of each point indicate? What does the slider at the bottom do?

Multiple Choice

Think, don't guess.

Vocabulary - Fill in the blank:

___ are the values that computers receive from various sources, including human activity, sensors, etc.

• Data

• Information

• Correlation

Multiple Choice

Think, don't guess.

Vocabulary - Fill in the blank:

___ is the humanly-useful patterns extracted from data.

• Data

• Information

• Correlation

Multiple Choice

Think, don't guess.

Vocabulary - Fill in the blank:

___ provide opportunities for identifying trends, making connections, and addressing problems. Information is the result of analyzing that data.

• Data

• Information

• Correlation

Multiple Choice

Vocabulary - Fill in the blank:

___ is a particular kind of information, namely a dependence between two variables in a situation

• Data

• Information

• Correlation

Negative Correlation

As one variable increases, the other decreases.

Positive Correlation

As one variable increases, the other also increases.

No Correlation

No real pattern between two variables

Correlation ≠ Causation

• It's possible one variable influences the other

• Maybe both variables are influenced by a third factor

• Or maybe they don't relate at all

• Explore at tiny.cc/spurious

Answer the questions on tiny.cc/U5L3P2

Questions, comments, or concerns?

Read more on tiny.cc/U5L3P3 (focus on the yellow & gray boxes).

Multiple Choice

B is the second ___ of this dataset.

• column

• field

• record

• row

Multiple Select

There are 5077 ___ in this dataset.

Choose two answers.

• columns

• fields

• records

• rows

Multiple Choice

"All-wheel drive" is a ___.

• column

• field

• record

• row

Multiple Choice

[140, 143, 202, "All-wheel drive", ...] represent a ___ in this dataset.

• column

• field

• record

• None of these

Cleaning data

The process of making the data uniform without changing its meaning (such as replacing abbreviations, spellings, and capitalizations with the intended word or converting miles to kilometers).

Programmers can use programs to filter and clean digital data, thereby gaining insight and knowledge.

It's so meta...

Data can even include data about itself.

EX: A music file (data: song) might contain data describing the song title, artist, album, genre, record label, etc.

EX: An image file (data: pic) might include data for the date that the picture was taken, the location where it was taken, information about the camera settings, the serial number of the specific camera, etc.

This kind of information about data is called metadata.

Trump official photos during hospitalization for Covid-19

Assignments

• Read Lab 3 starting at http://tiny.cc/U5L3P1 (click Next)

• Khan Academy: Readings optional. 75% accuracy req'd on exercises for completion credit. Review wrong answers before moving on

• AP Classroom: "5.3: Data2Info, Part 1", 12 Q's

• AP Classroom: "5.3: Data2Info, Part 2", 12 Q's