A Brief Version: Elementary Statistics Ch 5
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| Random Variable | A variable whose values are determined by chance.
🗑
|
||||
| Discrete Probability Distribution | Consists of values a random variable can assume and the corresponding probabilities of the values. The probabilities are determined theoretically or by observation.
🗑
|
||||
| What are the requirements for a probability distribution? | The sum of the probabilities of all the events in the sample space must equal 1. The probability of each event in the sample space must be between or equal to 0 and 1.
🗑
|
||||
| Mean of Probability Distribution (mu)= | The sum of the products X and P(X).
🗑
|
||||
| The Expected Value E(X) of a discrete random variable of a probability distribution is: | The theoretical average of the variable.
🗑
|
||||
| Binomial Distribution | The outcomes of a binomial experiment and the corresponding probabilities of these outcomes.
🗑
|
||||
| Binomial Experiment must satisfy what requirements? | There must be a fixed number of trials. Each trial can involve only 2 outcomes or outcomes that can be reduced to 2. The outcomes of each trial must be independent of one another. The probability of a success must remain the same for each trial.
🗑
|
||||
| P(S) = | The symbol for the probability of success. P(S)= p
🗑
|
||||
| P(F) = | The symbol for the probability of failure. P(F)= 1 - p = q
🗑
|
||||
| p = | The numerical probability of a success. P(S)= p
🗑
|
||||
| q = | The numerical probability of a failure. P(F)= 1 - p = q
🗑
|
||||
| n = | The number of trails.
🗑
|
||||
| X = | The number of successes in n trials.
🗑
|
||||
| ! = | Factorial
🗑
|
||||
| Mean of the Binomial Distribution (mu) = | n*p
🗑
|
||||
| Variance of the Binomial Distribution (sigma squared) = | n*p*q
🗑
|
||||
| Standard Deviation (sigma) = | square root of (n*p*q)
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
dengler
Popular Math sets