# Update: 178 new exercises on 34 subjects

At I Hate Statistics, we are constantly adding new material to help statistics students and teachers learn and teach the fundamentals of statistics.

This week we released a new update: 178 new exercises on 34 subjects.

For now, these subjects come with exercises only. In the future, we might add lessons as well. (if you want though, you can add lessons too!)

Some of the exercises are conceptual in nature. Others require calculations. Where possible, we parametrised the calculation questions. This means students get to use new numbers every time they view the same questions.

*Below a list of the new subjects on which we added exercises:*

**Probability Basics**

Conceptual understanding of random variables

Conceptual understanding of probabilities

Conceptual understanding of sample space

Conceptual understanding of (probability) distributions

Conceptual understanding of Discrete vs continuous distributions

Conceptual understanding of Probability density function and Cumulative density function

**Probability Calculations & Rules**

Conceptual understanding of marginal probabilities

Conceptual understanding of joint probabilities

Conceptual understanding of conditional probabilities

Notation of probabilities

Conceptual understanding of dependent and independent events

Conceptual understanding of probability rules

Computing probabilities using probability rules

**Counting and Expected Values**

Conceptual understanding of Expected Values

Computing Expected Values

Conceptual understanding of Combinations

Conceptual understanding of Permutations

Computing Permutations

Computing Combinations

**Binomial distribution**

Conceptual understanding of Binomial distribution

Notation of Binomial distribution and parameters

Notation of probability density and cumulative density

Conceptual understanding of properties of Binomial distributions

Computing with Binomial distributions

**Poisson Distribution**

Conceptual understanding of Poisson distribution

Notation of Poisson distribution and parameters

Properties of the Poisson distribution

Computing with Poisson distributions

**The Normal Distribution**

Conceptual understanding of Normal distribution

Notation of Normal distribution and parameters

Conceptual understanding of Standard Normal distribution

Conceptual understanding of Central Limit Theorem

Conceptual understanding of combining of several normally distributed variables

Computing parameters of combined normally distributed variables

We hope these new exercises will be helpful.

Please let us know if you have questions or feedback.

Let’s make data and statistics accessible and understandable for everyone!