Wednesday

July 23, 2014

July 23, 2014

Posted by **Bill** on Saturday, November 10, 2012 at 4:32pm.

(b) Answer part A for period from 1918 to present

- Binomial Probability -
**Reiny**, Saturday, November 10, 2012 at 6:50pmProb(male) = .7

prob(female) = .3

a) prob(6 are male_

= C(12,6) (.7)^6 (.3)^6 = .07925

b) prob(6 or more are female)

= prob(6 F) + prob(7 F) + prob(8 F + .. prob(12 F_

=

C(12,6)(.3)^6 (.7)^6 + C(12,7) (.3)^7 (.7)^5 + ... + C(12,12) (.3)^12 (.7)^0

I will let you do the button pushing

prob(less than 4 are female)

= prob(3 F) + prob(2 F) + prob (1 F) + prob(0 F)

= C(12,3) (.3)^3 (.7)^9 + ... + C(12, 0) (.3)^0 (.7)^12

= .....

**Related Questions**

Biometrics - If these samples were drawn from a population with mean male weight...

Probability - thirty animals are to be used in a medical experiment on diet ...

math - thirty animals are to be used in a medical experiment on diet deficiency...

statistics - 4 Find: a. The z score for each male salary, based on only the male...

statistics - Assuming that the population variances are equal for Male and ...

Statistics Help - Six candidates for a new position of vice-president for ...

statistik - twenty percent of the employees of a large company are female.use ...

Probability - At a certain university, 30% of the students major in math. Of the...

Statistic - Below are listed the numbers of doctors in various specialties by ...

statistics - Suppose that two employees have to be fired from a group of seven...