Data and Society Unit Test Review

Which of the following are necessary for any encoding system to work?

• The system must only use two different elements to encode information.

• Everyone who uses it must agree on the rules of the system.

• The system should have a pattern, so that it is easy to remember.

• none of the above

Which of the following are necessary for any encoding system to work?

• The system must only use two different elements to encode information.

• The system should have a pattern, so that it is easy to remember.

• The key for the system should be kept secret so that people cannot spy on the information.

• none of the above

A class took a survey to decide where to go on a class trip, and they want to make a chart to see how popular each choice was. Will they need to make any changes to the data before creating the chart?

• No, it is dishonest to change the data before putting it into a chart.

• Yes, they should correct misspellings and standardize names so the chart is more accurate.

• Yes, they should take out places that they think will not be good for the class trip.

• No, changing data will confuse people when their answers aren't in the chart.

What is the most popular of the animals, according to this chart?

• Dog

• Frog

• Penguin

• Giraffe

• There is not enough information

If someone told you their favorite season was autumn, what animal are they most likely to prefer, according to this chart?

• Dog

• Frog

• Penguin

• Giraffe

• There is not enough information

Can you make a recommendation for what time to post if you want the most likes?

• 6am

• 3pm

• Noon

• 6pm

What does computer use the represent text?

• ASCII

• Bit

• Pixels

• None of the options are correct

What does computer use the represent images?

• ASCII

• Bit

• Pixels

• None of the options are correct

What does computer use the represent numbers?

• ASCII

• Bit

• Pixels

• None of the options are correct

A group of students took a class survey on what they wanted to earn for an incentive prize of attendance. Their options were: an ice cream party, a pizza party, or sonic drink.

Which of the answers would need to be cleaned so a computer would be able to use it as data?

• pizza

• ice cream

• chocolate please

• sonic drink