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Contact [7]
3 years ago
9

Correct answer gets brainliest.

Mathematics
1 answer:
Vesnalui [34]3 years ago
6 0

TM = 1/2 KT

y+3 = 1/2(5y+3)

y+3 = 2.5y +1.5

y = 2.5y - 1.5

-1.5y = -1.5

y = 1

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The diameters of ball bearings are distributed normally. The mean diameter is 107 millimeters and the population standard deviat
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Answer:

0.6710

Step-by-step explanation:

The diameters of ball bearings are distributed normally. The mean diameter is 107 millimeters and the population standard deviation is 5 millimeters.

Find the probability that the diameter of a selected bearing is between 104 and 115 millimeters. Round your answer to four decimal places.

We solve using z score formula

z = (x-μ)/σ, where

x is the raw score

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For x = 104 mm

z = 104 - 107/5

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Probability value from Z-Table:

P(x = 104) = 0.27425

For x = 115 mm

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Probability value from Z-Table:

P(x = 115) = 0.9452

The probability that the diameter of a selected bearing is between 104 and 115 millimeters is calculated as:

P(x = 115) - P(x = 104)

0.9452 - 0.27425

= 0.67095

Approximately = 0.6710

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