AnswersEA Academy Online Learning and Digital Citizenship Elective SpringUnit Test

Describing Data Answers

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Use the dot plot to complete the statements. The dot plot shows that students answered 4 questions incorrectly on the quiz. The most frequent number of questions answered incorrectly was . The data distribution is .

Answers:
Selection 1:2
Selection 2:5
Selection 3:symmetrical
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Which headlines are examples of clickbait? Choose three correct answers.Places You Won’t Believe Are RealHow to Earn Cash FastVacation Spots in Florida Congress Passes a New Tax LawWhich Celebrities Are Lying about Their Age?

A
Places You Won’t Believe Are Real
B
How to Earn Cash Fast
C
Vacation Spots in Florida
D
Congress Passes a New Tax Law
E
Which Celebrities Are Lying about Their Age?
63

Which statements must be true according to the histogram? Check all that apply.

A
The data is qualitative.
B
The data is skewed right.
C
There were 31 people at the party.
D
There were children at the party.
E
The most common age of the attendees was 13 years old.
F
The majority of the people at the party were less than 61 years old.
64

Pete is conducting a survey to determine his customers’ overall satisfaction about the quality of his company’s products. He sends out surveys to the 5 customers who have purchased the largest number of items over the past year. Are his results likely to be representative of the population he is trying to analyze? Explain.

Answer:

His results are not likely to be representative of his entire customer base. The sample size of 5 is too small to provide accurate data. Furthermore, by only surveying his top 5 customers, he is creating a selection bias because people who buy the most items are likely already the most satisfied with the products. To get better results, he should use a larger, random sample of all his customers.

65

Darren kept track of the number of e-mails he received from one of his customers each day for 14 days on the dot plot.Which statement must be true according to the dot plot?

Question illustration
A
The data is skewed left and shows that on half of the days, Darren received 11 or 12 e-mails from the customer.
B
The data is skewed left and shows that on half of the days, Darren received 7 to 9 e-mails from the customer.
C
The data is skewed right and shows that on half of the days, Darren received 11 or 12 e-mails from the customer.
D
The data is skewed right and shows that on half of the days, Darren received 7 to 9 e-mails from the customer.
66

How is this article an example of the media being watchdogs?

A
Journalists uncovered illegal activities by a drug manufacturer.
B
Journalists gave the drug manufacturer a chance to promote its product.
C
Journalists described the importance of the drug to consumers.
D
Journalists reported on a drug manufacturer’s sudden, unannounced price increase.
67

How is this article an example of the media acting as gatekeepers?

A
The article presents evidence that wildfires can cause heath problems.
B
The article defines climate change and provides examples of its effects.
C
The author chooses which two scientific reports on climate change to include.
D
The author presents evidence for and against climate change.
68

Which should appear in each body paragraph of an academic paper?

A
a topic sentence, supporting details, and a transition sentence
B
a lead, a thesis statement, and a restatement of the thesis
C
a thesis statement, supporting details, and a final thought
D
a topic sentence, a restatement of the thesis, and a final thought
69

What are characteristics of good study habits? Select four options.studying very quicklycreating a study schedulehaving a distraction-free environmenthaving access to resourcesusing an assignment notebook

A
studying very quickly
B
creating a study schedule
C
having a distraction-free environment
D
having access to resources
E
using an assignment notebook
70

Read the scenario.The city council just announced that there is money in the budget for projects designed to help citizens address important issues in their community. They are asking for proposals.

A
an announcement related to a political campaign
B
a written plan that is submitted for consideration
C
a public speech that describes a community project
D
a newspaper article about a problem that needs fixing
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Sample Response: The sample is from the right population, his customers. However, because he is surveying such a small number of people and only asking his best customers (who are probably the most satisfied, or they would not buy so much from him), the results are going to be biased, most likely positive, and not representative of his entire customer base. What did you include in your response? Check all that apply.The sample size is too small.Only sending the survey to his best customers will

A
The sample size is too small.
B
Only sending the survey to his best customers will yield biased results, most likely in the positive direction.
C
The sample is not representative of the entire population.
74

A poll is being taken on Wednesday to predict which movie will be the most popular at the city’s movie theaters the next weekend: an animated movie, an action movie, or a romantic comedy. Which group would best represent a sample population?

A
Every fifth person coming out of the high school.
B
Every fifth person in the mall’s food court at lunchtime.
C
Every fifth person coming out of the downtown grocery store at different times throughout the day.
D
Every fifth person walking down the street in several different locations throughout town at different times of day.
75

On average, how many hours of sleep do teenagers need each night?

A
7 hours
B
7.5 hours
C
8 hours
D
8.5 hours
76

For which type of schoolwork would chunking different tasks be most appropriate?

A
a research paper
B
an end-of-chapter test
C
a worksheet
D
a reading assignment
77

What are public goods and services?

A
goods and services provided for US military personnel
B
goods and services that help facilitate voting on election days
C
goods and services for all citizens provided by governments
D
goods and services supplied to government officials
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80

A cell phone company wants to determine the average amount of data that their smart phone customers use each month. Which group would best represent a sample of the population?

A
one thousand of their customers with the most expensive monthly plans
B
one thousand of their customers who most recently signed up with the company
C
one thousand of their customers with a current smart phone data plan
D
one thousand of their customers who called in for technical support

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