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Sophia Learning - Introduction to Statistics Exam Practice Questions and Answers A bakery owner asked 150 customers to taste a new type of cookie and found that 60 people liked its taste. Which of these is an example of descriptive statistics? A.) 40% of all the bakery's customers like the ta...

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  • November 11, 2024
  • 64
  • 2024/2025
  • Exam (elaborations)
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  • sophia learning introduction to statistics exam

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Sophia Learning - Introduction to

Statistics Exam Practice Questions and

Answers


A bakery owner asked 150 customers to taste a new type of cookie and found that 60 people liked its

taste.




Which of these is an example of descriptive statistics?


A.) 40% of all the bakery's customers like the taste of the cookie.


B.) 40% of all people like the taste of the cookie.


C.) 40% of the surveyed customers like the taste of the cookie.


D.) 40% of the people in the city where the bakery is located like the taste of the cookie. - ANSWER✔✔-

C.) 40% of the surveyed customers like the taste of the cookie.




This statement is an example of descriptive statistics because it summarizes the data collected from the

specific group of 150 surveyed customers. Descriptive statistics describe the data without making

generalizations beyond the surveyed group.


A survey on internet usage was conducted among a portion of the ~500 students in the school cafeteria.

Of the 200 students surveyed, it was found that 100 students spend at least 2 hours online every day.

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Which of these is an example of descriptive statistics?


A.) 50% of the students surveyed spend at least 2 hours online each day.


B.) 50% of the students in the cafeteria spend at least 2 hours online each day.


C.) 50% of the students in the school spend at least 2 hours online each day.


D.) 50% of the students in the freshman class spend at least 2 hours online each day. - ANSWER✔✔-A.)

50% of the students surveyed spend at least 2 hours online each day.




This statement is an example of descriptive statistics because it describes the specific data collected from

the 200 students who were surveyed. It does not make any inferences or generalizations beyond the

surveyed group.


A company packed eight dark chocolates in a box of 32 assorted chocolates.


Which of these does NOT represent inferential statistics?




A.) 25% of the chocolates in a box are dark chocolates.


B.) 25% of the chocolates manufactured in a batch are dark chocolates.


C.) 25% of the chocolates packed in a day are dark chocolates.


D.) 25% of the chocolates manufactured in a factory are dark chocolates. - ANSWER✔✔-A.) 25% of the

chocolates in a box are dark chocolates.




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This statement represents descriptive statistics because it simply describes the percentage of dark

chocolates in a specific box without making inferences about a larger population or batch. The other

options involve making inferences beyond the specific box, which would be examples of inferential

statistics.


If you are using new information in a survey that was not collected during previous surveys, you will be

using __________ to gauge customer satisfaction.




A.) Biased data


B.) Raw data


C.) Peer-reviewed data


D.) Available data - ANSWER✔✔-B.) raw data




Raw data refers to new, unprocessed information collected directly from a survey or experiment. When

you collect new information that wasn't part of previous surveys, you're dealing with raw data.


If numbers collected from a survey are measurements, what are these measurements called before you

perform any calculations?




A.) Biased data


B.) Peer-reviewed data


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C.) Raw data


D.) Available data - ANSWER✔✔-C.) Raw data




Before any calculations or analysis are performed, the numbers collected from a survey are referred to as

raw data. This is the unprocessed and unorganized data directly gathered from the survey.


You find some public records about customer satisfaction in the company's archive.




What type of data is this called?


A.) Biased data


B.) Raw data


C.) Available data


D.) Peer-reviewed data - ANSWER✔✔-C.) Available data




Available data refers to existing information or records, such as public records or archived data, that can

be accessed and used for analysis.


Select the category that would yield qualitative data.




A.) Pet's age


B.) Pet owner's monthly income


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