Exam (elaborations)
Statistics Chapter 1-4 Exam Questions and Complete Solutions Graded A+
- Course
- Institution
Statistics Chapter 1-4 Exam Questions and Complete Solutions Graded A+
[Show more]
Content preview
Statistics Chapter 1-4Exam Questions and
Complete Solutions
Graded A+
Population - Answer: the entire collection of individuals or objects about which information is desired.
may be considered to be finite or infinite
Census - Answer: a collection of data from every member of the population
Sample - Answer: a sub-collection or subset of a population selected for study
Parameter - Answer: a numerical characteristic of a population
Statistic - Answer: a numerical characteristic of a sample
Variable - Answer: the characteristic about which we are interested
Data - Answer: the observations that have been collected
Qualitative Data - Answer: categorical or attribute data
Quantitative Data - Answer: numerical data
Discrete Data - Answer: count dataquantitative)
, Continuous Data - Answer: measure dataquantitative)
Sampling Error - Answer: the difference between the result of a sample and the result for the entire
population. caused by random fluctuations of the sample- i.e. by chance
Normal - Answer: bell-shaped distribution
Statistically Significant - Answer: observation that is extremely unlikely to happen simply by chance
Descriptive Statistics - Answer: the collection, presentation, and description of data
Inferential Statistics - Answer: interpreting the data in order to draw conclusions about the population,
based on information obtained from a sample
Frequency Distribution - Answer: a chart or table giving the values of a variable together with their
corresponding frequencies
Blood Type - Answer: example of a frequency distribution for qualitative data
Class Width - Answer: the difference between two consecutive lower class boundaries
Class Midpoints - Answer: the center value of each class
Relative Frequency - Answer: a proportional measure of frequency, calculated by dividing the frequency
of that class by the total frequency of the data set
Pie Chart - Answer: a circular graph showing the relationships of parts to a whole, only one variable at a
time may be displayed
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller YourExamplug. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
72042 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now