QR Q3 - Q1
Five Number Summary Min Q1 Median Q3 Max
Range Max - min
Types of Data Sets Descriptive: mean, std, dev, median, min, max
Inferential: methods for drawing conclusions about a phenomenon
Population and sample Population (N) > sample (n)
Parameter Number that refers to the populat...
Biostatistics Exam Review Questions and Answers IQR ✅Q3 - Q1 Five Number Summary ✅Min Q1 Median Q3 Max Range ✅Max - min Types of Data Sets ✅Descriptive: mean, std, dev, median, min, max Inferential: methods for drawing conclusions about a phenomenon Population and sample ✅Population (N) > sample (n) Parameter ✅Number that refers to the population Statistic ✅A number that describes a characteristic of a sample Types of variables ✅Quantitative: measured (use histograms, dotplots, stemplots) Categorical: categorized (finite set) Left skew (negative) ✅Mean < median Right skew (positive) ✅Mean > median Z-score (standardize data for comparison) ✅Sample: (x -xbar)/s Population: (x -mu)/sd Suspected Outlier ✅Low: any value < Q1 - 1.5IQR High: any value > Q3 + 1.5IQR r ✅r = sum [(x -xbar)/Sx] + [(y -ybar)/Sy] Linear regression ✅Slope of regression line = b1 b1 = r(Sy/Sx) Intercept = b0 b0 = ybar - b1(x) Residual ✅y-yhat
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 twishfrancis. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
