Random Variables and Probability Distributions
221 resources created by 158 users
This Random Variables and Probability Distributions page on GoConqr gathers community-made quizzes, mind maps, flashcards, notes and slide sets, from discrete random variables and the binomial distribution to the Poisson, exponential and normal distributions. It's built for university students and professional candidates, school students, and teachers after ready-made material. There are over 200 resources here, including more than 40 quizzes, over 50 mind maps and over 90 flashcard decks, for A-level, AP Statistics and Exam P practice. Pick a topic, try a quiz to find your gaps, then make your own.
Select topic
- Discrete Random Variables19
- Continuous Random Variables11
- Expected Value, Variance and Transformations5
- Shapes of Distributions7
- Binomial, Poisson and Geometric Distributions39
- Uniform, Exponential and Other Continuous Distributions19
- Normal Distribution and Z-Scores51
- Normal and Discrete Distributions7
- Joint and Bivariate Distributions5
Top Random Variables and Probability Distributions resources
-
12 cardsexam p distributions pmfs,pdfs, expected values, variances, special properties
-
8 questionsNormal Approximation What is the formula for a Normal Approximation to the Binomial?
-
Mind map S2 - Chapter 1 to 5 S2 stuff enjoy
-
Mind map Discrete Probability Distributions
-
Mind map Lec8 Binomial and Poisson Distributions Business Statistics Mind Map on Lec8 Binomial and Poisson Distributions, created by amma m on 06/02/2017. -
Mind map Statistics 1 Maths S1 Mind Map -
46 questionsStatistics final exam the expected value of a random variable can be thought of as a long-run average
-
Mind map Discrete Random Variable exmples + (PMF + cdf +E(X)+V(X)) + Bionomial Distribution + Poisson Dis.
Quizzes
See all 45 quizzes-
8 questionsNormal Approximation What is the formula for a Normal Approximation to the Binomial?
-
46 questionsStatistics final exam the expected value of a random variable can be thought of as a long-run average
-
90 questionsStatistics Revision Quiz If there are four plants, and two leaves are taken from each plant, how many data points are there?
-
74 questionsKeenan review The correlation between variable A and variable B in the scatterplot below is closest to:
-
35 questionsStatistics for Scientists and Engineers Final
-
40 questionsRouter rip| Version 5 160. The table below shows the distribution of a random variable X. Find M[x] and D(X).
-
11 questionsThe normal distribution
-
41 questionsMAT IV 120. Assuming that the height of men of a certain age group is a normally distributed random variable X wit...
Mind maps
See all 60 mind maps-
S2 - Chapter 1 to 5 S2 stuff enjoy
-
Discrete Probability Distributions
-
Lec8 Binomial and Poisson Distributions Business Statistics Mind Map on Lec8 Binomial and Poisson Distributions, created by amma m on 06/02/2017.
-
Statistics 1 Maths S1 Mind Map
-
Discrete Random Variable exmples + (PMF + cdf +E(X)+V(X)) + Bionomial Distribution + Poisson Dis.
-
Continuous Random Variable
-
DISCRETE PROBABILITY DISTRIBUTIONS
-
Statistics 2
Flashcards
See all 99 flashcards-
12 cardsexam p distributions pmfs,pdfs, expected values, variances, special properties
-
6 cardsDistribution Types Shapes of Charts
-
32 cardsBA Module 2 What is the difference between numerical properties of a population and those of a sample?
-
20 cardsUnit 7 - Discrete Distributions Test According to a recent survey, 37 percent of the people living in a certain region carry a certain genetic t...
-
26 cardsExponential Distribution and its Properties
-
39 cards3 MLBEYN Probability Coin is flipped 10000 times. Create countplot of discrete distributions in seaborn (sns)
-
46 cardsDistributions Distributions Why do we need this?
-
46 cardsEdexcel Statistics 1 - Key Facts Key facts and formulae which must be known for the Edexcel Statistics 1 examination.
Flowcharts
Notes
See all 10 notes-
Probability & Statistics Introduction This is a scatter plot between petal width as the y-axis and petal length as the x-axis from the IRIS dataset. The setosa flower is well separated but let us suppose picked some random point(xq, where q i...
-
Statistics 2 - S2 Chapter 1 - Binomial Distribution When Is It Used? There are a fixed number of trials, n. Each trial can be only be a success or a failure. Each trial is independent of one another. The probability of success is const...
-
Chapter four - created from Mind Map
-
Changing an X value to Z value If you have a statistical sample with a normal distribution, you can plug an x-value for this distribution into a special equation to find its z-value. The z-value can then help you to interpret statist...
-
Stats YEAR 2 Chapter 3 Characteristics of a normal distribution curve What does a normal distribution curve look like? It looks like a bell shaped curve which is symmetrical on both sides. We usually draw the y axis where the mean is so we ...
-
Math1005 Week 4 Notes The normal curve It approximates many natural phenomenon Does this by combining a large number of independent variables Bellshaped curve It represents a normal distribution Standard Normal Curve Has mean ...
-
Discrete Random Variables 4 Properties of a Binomial ExpansionFixed number of trials (n)Two possible outcomes in a trial (success or failure)Trials are independentProbability of success (p) remains constantIf X is the number of successes in n ...
-
Random variable - created from Mind Map Quantity whose future outcomes are uncertain Discrete Continuous
Slides
Topics in Random Variables and Probability Distributions
More Statistics and probability topics
About Random Variables and Probability Distributions
GoConqr OriginalWhat the resources cover
The unit moves from discrete random variables to continuous ones. The mind map Discrete Random Variable explains that a variable is discrete only when it takes a countable number of values. Discrete Probability Distributions then covers the binomial case: identical trials, two outcomes, success and failure.
Other maps carry on from there. Statistics 1 includes the geometric distribution, X~Geo(p), and the idea of going on until a success. Lec8 Binomial and Poisson Distributions covers the expected value and how to calculate probabilities. S2 - Chapter 1 to 5 lists the conditions for Poisson events: they occur singly, at a constant rate, independently and at random.
Where to start
- Begin with the mind map Discrete Random Variable to get the vocabulary.
- Move to Discrete Probability Distributions and Lec8 Binomial and Poisson Distributions.
- Read the Normal Distribution slide set, which shows how the mean sits in the middle and how a larger variance flattens the curve.
- Finish with the quiz Normal Approximation, which asks about approximating the binomial and the Poisson and about continuity corrections.
Using quizzes and maps together
Read a map first, then take a quiz on the same topic. Where you miss a question, go back to that branch of the map. There are separate quizzes on the geometric, Poisson, exponential and Bernoulli distributions, so you can check one idea at a time.
For Exam P candidates, the flashcard deck exam p distributions lists the discrete uniform, binomial, hypergeometric, geometric, negative binomial, Poisson, continuous uniform, exponential, gamma, normal, lognormal and beta distributions. The notes Probability & Statistics add the cumulative distribution function, skewness, kurtosis and the standard normal variate.
Where this unit fits
This unit sits in the Probability strand of Statistics and probability. Some resources mention A-level Maths, A-level Statistics and AP Statistics, so school students will find material pitched at their courses. Most of the unit, though, suits university study.
Choose one resource that matches what you are working on today, open it, and then try making a flashcard deck or map of your own.
Frequently asked questions
Which resource should I open first?
Start with the mind map Discrete Random Variable if the topic is new to you. It sets out what makes a variable discrete. Then move to Discrete Probability Distributions for the binomial case. If you already know the basics, go straight to a quiz and see which questions you miss.
Which resources suit Exam P preparation?
The flashcard deck exam p distributions lists a long run of discrete and continuous distributions, from the discrete uniform to the beta. Quizzes on the Poisson, hypergeometric and negative binomial distributions and on continuous distributions can help you test what you have learnt.
Are there resources for A-level or AP Statistics?
Yes. Some listed resources mention A-level Maths, A-level Statistics, A-level Mathematics and AP Statistics. Look at the Statistics 1 mind map and the notes on Statistics 2 - S2 for chapter-style coverage of binomial, geometric, Poisson and normal distributions.
Do I need to pay or sign up to use these?
No. Every resource on this page is free to open, study and take, with no account. They were made by GoConqr users, not by GoConqr. A free account lets you save quiz scores and make your own quizzes, mind maps, flashcards and notes.
What do the quizzes on the normal distribution test?
The Normal Approximation quiz asks for the formulas used to approximate the binomial and the Poisson, and whether a continuity correction is needed. Other quizzes, such as The normal distribution and Normal Bell Curve, let you practise the shape and properties of the curve.
What if I cannot find a topic I need?
Try a nearby resource first, as many maps and decks cover several distributions at once. If the topic is still missing, you can make your own mind map, flashcards or quiz on it with a free account, and use the listed ones as a model.