Refer to the table below. Given that 2 of the 213 subjects are randomly selected

Question

Refer to the table below. Given that 2 of the 213 subjects are randomly selected, complete parts (a) and (b) AB 16 Rh 76 48 16 20 Type Rh a. Assume that the selections are made with replacement What is the probability that the 2 selected subjects are both group A and type Rh" (Round to tour decirnal places as needed ) b, Assume the selections are rnade without replacem ent what is the probaonty that the 2 selected sutycts are boen group A an, type Rh ? . (Round to four decirmal places as needed)

Explanation / Answer

from above:

a)

P(2 subjects of both group A and type Rh+) =(48/213)*(48/213)= 0.0508

b)

P(2 subjects of both group A and type Rh+) =(48/213)*(47/212)=0.0500

O A B AB total; RH+ 76 48 20 16 160 RH- 22 16 9 6 53 total 98 64 29 22 213

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