Two urns contain white balls and yellow balls. The first urn contains 2 white balls and 7 yellow balls and the second urn contai
2 answers:
Answer with Step-by-step explanation:
A: white ball is drawn from first urn
P(A)=number of white balls in first urn/total balls in first urn
= 2/9
B: white ball is drawn from second urn
P(B)=number of white balls in second urn/total balls in second urn
= 10/14
A∩B: white ball is drawn from both urns
Since, events A and B are independent
Hence, P(A∩B)=P(A)×P(B)
=
= 10/63
Hence, probability that both balls are white is:
10/63
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Answer:
2.061, 2.34, 2.6, 2.601, 2.7
Step-by-step explanation:
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This is a bit hard to explain! If you want me to try, just comment.
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Answer: 0.7887
Step-by-step explanation:
Let x be the random variable that represents the diameters of the corks .
Given : The first produces corks with diameters that are normally distributed with mean 3 cm and standard deviation 0.08 cm.
i.e.
Acceptable corks have diameters between 2.9 cm and 3.1 cm.
Then, the probability that the first machine produces an acceptable cork will be :_
∴ The probability that the first machine produces an acceptable cork= 0.7887