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creeper2737
15.11.2019 •
Mathematics
Agroup of students is donating blood during a blood drive. a student has 9/20 probability of having type 'o' blood and a 2/5 probability of having type 'a'.what is the probability that a student has type 'o' or type 'a' blood and why?
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Ответ:
A group of students is donating blood during a blood drive. a student has 9/20 probability of having type 'o' blood and a 2/5 probability of having type 'A'.what is the probability that a student has type 'o' or type 'a' blood and why?
The student can have only one blood type, so the actual events are mutually exclusive.
Ответ:
the answer is "The student can have only one blood type, so the actual events are mutually exclusive. "
The probabilities are not mutually exclusive. Based on the group
P(Type O) = 9/20 = 45% or 0.45
P(Type A) = 2/5 = 40% or 0.40
P(Other) = 3/20 = 15% or 0.15
I hope my answer helped you. Feel free to ask more questions. Have a nice day!
Ответ:
b
Step-by-step explanation: