Exam (elaborations)
QMB EXAM 1
- Course
- Institution
Exam of 38 pages for the course ... at ... (QMB EXAM 1)
[Show more]
Content preview
Name: Score:108 Multiple choice questions
Definition 1 of 108
show counts of data in categories
bar charts or pie charts
variance
histograms
clustered bar charts
Definition 2 of 108
if we are asked to determine how many possible outcomes there are for a few things that happen
in a row
combination formulas
counting rules
continuous
counting formulas
Definition 3 of 108
summarize two variables across one anothere where at least one is categorical
two types of random variables
continuous random variables
data tables
pivot tables
,Definition 4 of 108
countable outcomes that arent just yes and no
ex: how many textbooks are in a backpack (0,1,2,3...)
non-binomial rvs
binomial rvs
poisson rvs
combination formulas
Term 5 of 108
variance
list of all possible outcomes
correlation
square of the standard deviation
standard error of the mean
Definition 6 of 108
data gathered at a single point in time
ex: student is aked their age, gpa, and major
cross-sectional data
graphs of categorical data
quantitative data
time series data
,Definition 7 of 108
an actual count of how often a data value shows up
ex: 25 stuents in class that scored 4
frequency: 25
frequency
probability
correlation
amplitude
Definition 8 of 108
tells us the percent of data values below it
median
percentile
parameter
mean
Term 9 of 108
covariance sucks vecause it is
discrete random variables
continuous random variables
classical probability
empirical probability
subjective probability
boundless
from negative infinity to positive infinity
correlation
, Definition 10 of 108
outcomes that take on finite or countable
negative rv
binomial rv
continuous rv
discrete rv
Definition 11 of 108
ratio
interval
discrete
continuous
time series data
classical probability
four types of quantitative data
2 main areas of statistics
Term 12 of 108
probability
a bunch of yes or no outcomes
ex:did a student pass their test or no (1,0)
bound between 0 and 1
must sum to 1
much derives from experiments
ex:flipping a coin
measures the direction and strength of the linear relationship between x and y
measures direction and strength of the linear relationship between x and y
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 stuuviaa. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81113 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now