Use the data in the following table, which summarizes blood groups and Rh types

Question

Use the data in the following table, which summarizes blood groups and Rh types for randomly selected subjects. Assume that subjects are randomly selected from those included in the table. If two people are selected, find the probability that they are both type Rh^+ in parts (a) and (b) below. a. Assume that the selections are made with replacement. Are the events independent? The probability is ___________. The events (1) _____________ independent because the occurrence of the first subject having blood type Rh^+ (2) __________ affect the probability of the occurrence of the second subject having blood type Rh^+. b. Assume the selections are made without replacement. Are the events independent? The probability is ___________. The events (3) ___________ independent because the occurrence of the first subject having blood type Rh^+ (4) ____________ affect the probability of the occurrence of the second subject having blood type Rh^+. are are not does does not are are not does does not

Explanation / Answer

2)a) probability that a person has Rh+ = (87/(87+16))= 0.8446601

now if with replacement

then required probability = 0.8446601*0.8446601 = 0.713450

The events are independent , does not effect

b) required proabability = 87/(87+16) * 86/((86+16)) = 0.7121644

are not independnet, does affect

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