The mean time it takes for workers at a factory to insert a delicate bolt into an engine is 15 minutes. The standard deviation o
1 answer:
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Answer: 0.21
Step-by-step explanation:
Let A denotes the event that employees are college graduates.
B denotes that the event that employees have more than ten years of experience.
As per given , we have
P(A)=0.51
P(B)=0.47
P(A∪B)=0.77
We know that ,
Hence, the probability that a randomly selected employee will have more than ten years of experience and be a college graduate = 0.21
For this case we must find the product of the following expression:
By definition of properties of powers and roots we have:
We rewrite the expression using the lowest common index of 6, then:
We rewrite the terms in an equivalent way:
We rewrite the expression using the property mentioned:
We combine using the product rule for radicals:
So:
ANswer:
Option b