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tigry1 [53]
4 years ago
10

An assembly consists of two mechanical components. Suppose that the probabilities that the first and second components meet spec

ifications are 0.91 and 0.85. Assume that the components are independent. Determine the probability mass function of the number of components in the assembly that meet specifications. X = number of components that meet specifications.
Mathematics
1 answer:
Stolb23 [73]4 years ago
3 0

Answer:0.77

Step-by-step explanation:

Let A be the specification of first components and B be the specification of second component

Let P(A) be the probability that A meets specification and P(B) be the probability that B meets specification.

Probability mass function of the number of components in the assembly that meet specification = P(A) × P(B) (since they are independent)

X= 0.91×0.85

X= 0.77

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Zanzabum
6.70 for paint brushes. for 2 is 6.70×2=$13.40

35-13.40=$21.60 left after 2 paint brushes

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6 0
4 years ago
Based on your value of x in question #1, what is the value for ∠EHF
Ludmilka [50]

Answer:

∠EHF = 132°

Step-by-step explanation:

Both angles lie on a straight line.

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  • ∠EHF + ∠FHG = 180°
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Then ∠EHF :

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6 0
3 years ago
The heights of American men are normally distributed. If a random sample of American men is taken and the confidence interval is
solmaris [256]

Answer:

<h2>69.5</h2>

Step-by-step explanation:

Given the confidence interval of the heights of american heights given as (65.3,73.7);

Lower confidence interval L = 65.3 and Upper confidence interval U = 73.7

Sample mean will be the average of both confidence interval . This is expressed mathematically as \overline x = \frac{L+U}{2}

\overline x = \frac{65.3+73.7}{2}\\\overline x = \frac{139}{2}\\\overline x = 69.5

Hence, the sample mean is 69.5

7 0
3 years ago
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ch4aika [34]
Answer:
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step-by-step explanation:
a = l • w
24 • 24
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5 0
3 years ago
Read 2 more answers
Linear equations. Solve the equation: 10 = 7x - 4
lutik1710 [3]

Answer: x = 2

Step-by-step explanation:

10 = 7x - 4

Add 4 to both sides

10 + 4 = 7x - 4 + 4

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Divide through by 7

\frac{14}{7}=\frac{7x}{7}

2 = x

Therefore :

x = 2

5 0
3 years ago
Read 2 more answers
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