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Tanya [424]
3 years ago
15

There are two machines available for cutting corks intended for use in wine bottles. The first produces corks with diameters tha

t are normally distributed with mean 3 cm and standard deviation 0.1cm. The second machine produces corks with diameters that have a normal distribution with mean 3.04 cm and standard deviation 0.02 cm. Acceptable corks have diameters between 2.9 and 3.1 cm.
(a)-What is the probability that the first machine produces an acceptable cork? (Round your answer to four decimal places.)
(b)-What is the probability that the second machine produces an acceptable cork? (Round your answer to four decimal places.)
Mathematics
1 answer:
sertanlavr [38]3 years ago
6 0

Answer:

Step-by-step explanation:

Given that there are two machines available for cutting corks intended for use in wine bottles.

X1 = diameter of I machine and X2 = diameter of II machine

X1 is N(3.04, 0.02) and X2 is N(2.9, 3.1)

Acceptable is mean =3 and std dev = 0.1

a) P(2.9

b)  P(2.9

Both are certain events.

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