Tuesday

March 31, 2015

March 31, 2015

Posted by **Trisha** on Tuesday, July 31, 2012 at 2:01am.

- Math -
**MathMate**, Tuesday, July 31, 2012 at 7:10pmIf we can assume random trials, and that probability remains constant (at 1/2).

Use binomial distribution.

N=5 (no. of trials),

n=3 (no. of successes),

p=1/2 (probability), q=(1-p)=1/2

P(3 out of 5)

=C(5,3)p^3q^(5-3)

=5!/(2!3!) (1/2)^3(1/2)^2

=10/32

=5/16

**Answer this Question**

**Related Questions**

Math - Trudi Can Either Walk TO School, Or She Can Take The Bus. The ...

probability - for a small regional airline, the number of claims for missing ...

math-probability - betsy goes running 2 days out of 7 and james goes running 5 ...

Maths - - In a normal pack of cards, write down the odds against picking each ...

Probability - Before leaving for work, Victor checks the weather report in ...

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

Probability - Oscar has lost his dog in either forest A (with probability 0.4) ...

statistics - A life insurance salesman sells on the average 3 life insurance ...

probability - Before leaving for work, Victor checks the weather report in order...

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