Binomial Random Variable – Lesson 8

STAT 2023 on Tuesday, February 19, 2019, will have class online due to inclement weather.  Begin to learn the material by reading Lesson 8 and studying in detail Binomial Random Variable Lesson 8 Written Out Lecture.  Once you complete the studying and read the paragraphs below, use this exercise, 20190219 STAT 2023 Exercise Lesson 8, to practice the ideas.   Remember the key to the exercise is posted.

An online statistical calculator that can be used to calculate probabilities associated with various distributions is at https://stattrek.com/   Look on the left side of the main page for Binomial under Stat Tables.   To use the online Binomial calculator plug in the value of p in the top box, the value of n below that, and the value of the variable for which the probability is being calculated.

Many of your calculators can calculate the Binomial Probabilities.  Check YouTube for videos about how to use your calculator to generate the Binomial probabilities.    On TI calculators try the following.   2nd (screen) =>VARS=>binomial pdf (n,p,x) which is the Binomial probability at the value of x with n as the number of independent trials and p as probability of success on one outcome.   In notation, that is P(X=x |X~Bi(n,p)).  If you used binomial cdf(n,p,x) then you have the cumulative probability on each value of the Binomial variable from 0 to the value of x.  In notation, that would be P(X<=x |X~Bi(n,p)).

 

Happy Valentine’s Day!

Exam ONE is Tuesday, Feb 12

Due to the closing of OSU for icy conditions, the STAT 2023 exam will be Tuesday, February 12.    Stay Warm and Keep Studying!

Exam Reviews and Supplemental Instruction Sessions

There will be exam reviews prior to each Thursday exam.

The reviews are all in 301 CLB between 4-6pm on both Tuesdays and Wednesdays.

The Supplemental Instruction Sessions are:

Mondays, 6-8pm in CLBN 213.   North, not the CLB.

Wednesdays, 4-5pm in AGH 201.

The instructor is Braden Ward.

Exam One is Thursday, February 7

The first exam is quickly approaching.  Practice the past exams and grade them with the posted keys.

Exam Review Sessions are in 301 CLB from 4-6pm on Tuesday and Wednesday before the test.   This is the same pattern for review sessions that will be used for all exams.

Check your assigned seat in the Assigned Exam Seats link on the lower right of the main page.   Write the row letter and seat number on the page that you will bring to the test.

Study Up and Make an A!