Exam (elaborations)
Descriptive Statistics Practice Questions well answered graded A+
- Course
- Institution
Descriptive Statistics Practice Questions well answered graded A+
[Show more]
Content preview
Descriptive Statistics Practice QuestionsCentral Tendency - correct answer ✔✔central/typical value around which data clusters
(mean, median, mode)
Descriptive Statistics - correct answer ✔✔used to describe data sets
used to visualize data
1st step in any statistical analysis
Variability - correct answer ✔✔measure of how much scores differ from the mean
Skew/Kurtosis - correct answer ✔✔shape of the spread (variability); distribution
Weighted Mean - correct answer ✔✔(bc mean is sensitive to outliers)
used to restore balance to over or underrepresented segments of a sample
Median - correct answer ✔✔value at which 50% of all scores fall below, and 50% fall above
Calculating the Median - correct answer ✔✔-rank order from lowest to highest
-find "middle" score, or average middles scores if sample size is even
1st Quartile (Q1) - correct answer ✔✔value at which 25% of all observations fall below
3rd Quartile (Q3) - correct answer ✔✔value at which 75% of all observations fall below
Percentiles (Uses) - correct answer ✔✔-used to get a feel for how spread out the data is and where most
of the observations are contained
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 BravelRadon. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67096 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now