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March 29, 2015

Homework Help: Statisctics and Probability

Posted by Adelina on Thursday, October 24, 2013 at 12:21pm.

HI, I don't know how to approach this problem, could someone please help, thank you.
Seeds are often treated with a fungicide for protection in poor-draining, wet environments. In a small-scale trial prior to a large-scale experiment to determine what dilution of the fungicide to apply, six treated seeds and five untreated seeds were planted in clay soil and the number of plants emerging from the treated and untreated seeds were recorded. Suppose the dilution was not effective and only four plants emerged. Let x represent the number of plants that emerged from treated seeds. (Round your answers to three decimal places.)
(a) Find the probability that x = 4.

(b) Find
P(x 3).


(c) Find
P(2 x 3).

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