I'm not sure where to start on this one at all, very confused. I don't want anyone to do the entire problem for me just point me in the right direction. I know how to compute probability from simple random events but this question just confuses the heck out of me :((adsbygoogle = window.adsbygoogle || []).push({});

Question:

A labor dispute has arisen concerning the alleged distribution of twenty laborers to four different construction jobs. The first job (considered to be abominable employment) required six laborers; the second, third and fourth utilized four, five and five laborers, respectively.

The dispute arose over an alleged random distribution of the laborers to the jobs which placed all four members of a particular ethnic group (there are only 4 members of this ethnic group out of the 20) on job 1.

a)What is the probability that an ethnic group member is assigned to each one of the job groups?

b)What is the probability that NO ethnic group member is assigned to the fourth group?

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# Homework Help: Statistics question involving combinations and groups

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