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Ymorist [56]
3 years ago
9

The probability of an engine's failing during a 30 day acceptance test is 0.3 under adverse environmental conditions. Eight engi

nes are included in such a test. What is the probability of the following?
a) None will fail

b)All will fail
Mathematics
1 answer:
NNADVOKAT [17]3 years ago
6 0
This is an example of binomial probability (pass/fail), with n=8 and p(failure)=0.3.

The probability that none will fail is binompdf(8,0.3,0) = 0.0576.
The prob. that all will fail is found by subtracting this result from 1.0000, and is 1.0000-0.0576=0.9424.  "All" is the "complement" of "None."

I used my TI-83 Plus calculator's probability distribution functions to calculate the probability that none will fail.
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White raven [17]

5/6 is equivalent to 20/24

3/4 is equivalent to 18/24

so 5/6 is bigger than 3/4 by 2/24


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Help with math please example 1
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3 0
3 years ago
Identify all the points that are on the following quadratic function: y = x^2 - 3x
Bad White [126]
THE ANSWER IS A AND B
8 0
3 years ago
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Please find mA and mB please.
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7 0
3 years ago
Can anyone help ? i really don’t understand this question <br> If NP bisects X =<br> m/RNM =
snow_tiger [21]

We can conclude that the value of x is (∠MNP + 66)/8 and angle m∠RNM = ∠RNQ - ∠MNP + 78.

<h3>What are angles?</h3>
  • An angle is a figure in Euclidean geometry formed by two rays, called the sides of the angle, that share a common endpoint, called the vertex of the angle.
  • Angles formed by two rays are located in the plane containing the rays.
  • Angles are also formed when two planes intersect.
  • These are known as dihedral angles.

So,

  • ∠MNQ = ∠MNP + ∠PNQ
  • 8x + 12 = ∠MNP + 78
  • 8x + 12 - 78 = ∠MNP
  • 8x - 66 = ∠MNP
  • 8x = ∠MNP + 66
  • x = (∠MNP + 66)/8

Now, substitute 'x = (∠MNP + 66)/8' in 8x + 12:

  • ∠MNQ = 8x + 12
  • ∠MNQ = 8 ×(∠MNP + 66)/8 + 12
  • ∠MNQ = ∠MNP + 66 + 12
  • ∠MNQ = ∠MNP + 78

Hence, m∠RNM = ∠RNQ - ∠MNP + 78

Therefore, in the given question value of x is (∠MNP + 66)/8 and angle m∠RNM = ∠RNQ - ∠MNP + 78.

Know more about angles here:

brainly.com/question/25716982

#SPJ9

7 0
1 year ago
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