Variance of a bernoulli trial

Popular Tags: Mean and variance of Bernoulli distribution tutorial. Exact matches only. Search in title. Search in content. Search in excerpt. Apache Spark. Data Science. Google Cloud Platform. Hadoop Admin.

Interview Questions. A final exam of the course Probability consists of 10 multiple-choice questions. Each question has 4 possible answers and only one of them is a correct answer. To pass the course, 8 or more correct answers are necessary. The chances of getting any of the toys are equally likely and independent of the previous results. Find the expected number of boxes that you need to buy. Leave a Reply Cancel reply Your email address will not be published.

This website is no longer maintained by Yu. ST is the new administrator. Linear Algebra Problems by Topics The list of linear algebra problems is available here. Subscribe to Blog via Email Enter your email address to subscribe to this blog and receive notifications of new posts by email. Sponsored Links. Now, when I go to write this out, everything does not quite hang together for me:. Now, I am stuck. The book actually covered my problems, but I had to search around Here is the solution I settled on After I understood variance , expectation , indicator variables and convolutions :.

Then I establish that the indicator variables are independent and this is actually the key step that I wish was clearer, and I knew more about , so:. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Asked 5 years, 9 months ago. Active 5 years, 8 months ago.