Friday

August 22, 2014

August 22, 2014

Posted by **Mete** on Tuesday, March 11, 2008 at 11:31pm.

For this question I tried using binomial distribution by setting x = 0, 1, 2, 3. p=.2 and n =15. After doing all of them, Do add the probabilities to get the answer?

- Statistical Methods -
**PsyDAG**, Wednesday, March 12, 2008 at 2:13amTo get the probability that

*all*events would occur, you need to*multiply*the probability of each of the individual events.

The probablitiy of no rainy days is .8^15.

The probability of one rainy day is .2 * .8^14.

The probability of two rainy days is .2^2 * .8^13.

The probability of three rainy days is .2^3 * .8^12.

The probability of being either one or the other of these four probabilities is found by adding the four products above.

I hope this helps. Thanks for asking.

**Related Questions**

Lit. Poem Please ASAP - I need you to check one question thanks. It's for the ...

Algebra - During the last 365 days it was sunny 5 days less than 4 times the ...

math (probability) - The probability that it will be rainy on Monday is 7/10. ...

math - The probability that it will be rainy on Monday is 7/10. The probability ...

probability - There is a .97 chance that no accident will occur during any ...

Math - A biologist has determined that a particular osprey has a 70% chance of ...

Algebra 2 - A biologist has determined that a particular osprey has a 70% chance...

3rd grade math - erins summer vacation lasted 100 days. she kept track of the ...

math -binomial probability - astrid and iman are planing a vaction trip to the ...

Algebra - The probability that it will be rainy on Monday is 7/10. The ...