An urn containspblack balls, qwhite balls, andrred balls; andnballs arechosen without replacement. a.find the joint distribution of the numbers of black, white, and red balls in thesample. b.find the joint distribution of the numbers of black and white balls in thesample. c.find the marginal distribution of the number of white balls in the sample.

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step-by-step explanation:

x = 2

step-by-step explanation:

if sr parallel to ba then the sides bc and ac are in proportion, that is

= ← substitute values

= ( cross- multiply )

27x = 6(4x + 1)

27x = 24x + 6 ( subtract 24x from both sides )

3x = 6 ( divide both sides by 3 )

x = 2

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