B-sum of cubes is the answer
The probability that at least one of them has an injection-site reaction is: 0.5356.
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Probability</h3>
Using this formula
Probability of atleast one= 1- (1- Proportion)^n
Where:
Proportion=.12
Sample size=n=6
Let plug in the formula
Probability of atleast one=1-(1-.12)^6
Probability of atleast one=1-(.88)^6
Probability of atleast one=1-.4644041
Probability of atleast one=0.53559
Probability of atleast one=0.5356 (Approximately)
Therefore the probability that at least one of them has an injection-site reaction is: 0.5356.
Learn more about probability here:brainly.com/question/20411748
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Answer:
a. a = 25
b. b = 14
Step-by-step explanation:
a. a/5 + 3 = 8
a/5 = 5
a = 25
b. 3b/7 - 1 = 5
3b/7 = 6
3b = 42
b = 14
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