Exam (elaborations)
STAT 2300 Exam 1 with correct answers
- Module
- Institution
STAT 2300 Exam 1 with correct answers
[Show more]
Seller
Follow
Fordenken
Reviews received
Content preview
STAT 2300 Exam 1 with correct answersIndividual - ** VERIFIED ANSWERS🔰 ✔✔entities measured in a study
-people
-cars
-countries
-days
Population - ** VERIFIED ANSWERS🔰 ✔✔the entire group being studied
-most populations are too large to feasibly collect measurements from every individual
-ALL US citizens
-ALL cars being manufactured on a given day
Census - ** VERIFIED ANSWERS🔰 ✔✔data collected for every individual in a population
Sample - ** VERIFIED ANSWERS🔰 ✔✔the subset of the population for which we actually
collect data
-the 1500 surveyed US adults
Parameter - ** VERIFIED ANSWERS🔰 ✔✔a numerical summary of the population
-parameter values are usually unknown (unless we take a census)
Statistic - ** VERIFIED ANSWERS🔰 ✔✔a numerical summary of a sample
-we use sample statistics to estimate the value of population parameters
, Descriptive statistics - ** VERIFIED ANSWERS🔰 ✔✔Methods for summarizing the
collected data (where the data constitutes either a sample or a population)
-Descriptive statistics describe data through tables, graphs, and numerical summaries such
as averages or percentages
inferential statistics - ** VERIFIED ANSWERS🔰 ✔✔Methods that take a result from a
sample, extend it to the population, and measure the reliability of the result
-the accuracy of a generalization always contains uncertainty because a sample cannot tell
us everything about a population
variable - ** VERIFIED ANSWERS🔰 ✔✔any characteristic of the individual within the
population
-A variable can take different values for different individuals
distribution - ** VERIFIED ANSWERS🔰 ✔✔tells us what values it takes and how often it
takes those values
Quantitative - ** VERIFIED ANSWERS🔰 ✔✔numerical values that represent different
magnitudes of the variable
-Number of children in family
-time spent studying for stats exam
Qualitative - ** VERIFIED ANSWERS🔰 ✔✔categorical
belongs to one of a set of categories
-presidential approval
-college major
-area code
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 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 Fordenken. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £13.92. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
53340 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now
Recently viewed by you
