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Thepotemich [5.8K]
3 years ago
12

What's the answer to this problem 86÷5=n

Mathematics
1 answer:
Butoxors [25]3 years ago
4 0

Answer:

17.2 =n

Step-by-step explanation:

86÷5=n

divide 86 by 5 we get

value of n

17.2 =n

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The lengths of bolts in a batch are distributed normally with a mean of 3 cm and a standard
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Answer:

0.8413 = 84.13% probability that a bolt has a length greater than 2.96 cm.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

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Z = \frac{X - \mu}{\sigma}

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Mean of 3 cm and a standard deviation of 0.04 cm.

This means that \mu = 3, \sigma = 0.04

What is the probability that a bolt has a length greater than 2.96 cm?

This is 1 subtracted by the p-value of Z when X = 2.96. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{2.96 - 3}{0.04}

Z = -1

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1 - 0.1587 = 0.8413

0.8413 = 84.13% probability that a bolt has a length greater than 2.96 cm.

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