February 27, 2017

Homework Help: Stadistic

Posted by Anonymous on Thursday, August 22, 2013 at 10:20pm.

According to a genetics model, plants of a particular species occur in the categories A, B, C, and D, in the ratio 9:3:3:1. The categories of different plants are mutually independent. At a lab that grows these plants, 218 are in Category A, 69 in Category B, 84 in Category C, and 29 in Category D.

Under the null, the expected number of plants in Category D is ______.

Degrees of freedom = _______.

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