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4 years ago

14

The thickness of a flange on an aircraft component is uniformly distributed between 0.95 and 1.05 millimeters. (a) Determine the

proportion of flanges that exceeds 0.99 millimeters.

1 answer:

Igoryamba4 years ago

8 0

Answer:

The proportion of flanges that exceeds 0.99 millimeters is 0.6

Explanation:

Given;

integral range of [0.95, 1.05]

Let X be a variable with uniform distribution over the given range.

$Then, f(x) = \frac{1}{1.05 -0.95} =10$

1 - 0.95 = 0.05, 1.05 - 1 = 0.05

$\ minimum, f_(x) = \frac{0.05}{1.05 -0.95} =0.5\\\\$

interval = 10 - 0.5 = 9.5

F(x) = 10x + 9.5

When, X exceeds 0.99 millimeters, then the proportion of flanges will be;

P (X > x) = 1 - F(x)

P( X > 0.99 ) = 1 - 10(0.99) + 9.5

P( X > 0.99 ) = 0.6

Therefore, the proportion of flanges that exceeds 0.99 millimeters is 0.6

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