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2 years ago

Edi;bbbbbbbbbbbbbbbbbbbb

1 answer:

3 0

<h2><em><u>Answer:</u></em></h2><h2><em><u>Sorry i didn't understand the question but thank you for the points </u></em></h2><h2><em><u>Step-by-step explanation:</u></em></h2>

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HELP PLS ILL MARK BRAINLIEST PLEASEEEEEEEEE

sladkih [1.3K]

Answer: A

Step-by-step explanation: because I had that same test last year

4 0

2 years ago

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(7-15-3+5-7)×1 step by step

Tresset [83]

Answer:

-13

Step-by-step explanation:

(7−15−3+5−7)⋅1

Subtract 15 from 7 to get −8.

(−8−3+5−7)×1

Subtract 3 from −8 to get −11.

(−11+5−7)×1

Add −11 and 5 to get −6.

(−6−7)×1

Subtract 7 from −6 to get −13.

−13

6 0

2 years ago

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Let x denote the lifetime of a mcchine component with an exponential distribution. The mean time for the component failure is 25

aliina [53]

Answer:

0.1353 = 13.53% probability that the lifetime exceeds the mean time by more than 1 standard deviations

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

$f(x) = \mu e^{-\mu x}$

In which $\mu = \frac{1}{m}$ is the decay parameter.

The probability that x is lower or equal to a is given by:

$P(X \leq x) = \int\limits^a_0 {f(x)} \, dx$

Which has the following solution:

$P(X \leq x) = 1 - e^{-\mu x}$

The probability of finding a value higher than x is:

$P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}$

The mean time for the component failure is 2500 hours.

This means that $m = \frac{2500}, \mu = \frac{1}{2500} = 0.0004$

What is the probability that the lifetime exceeds the mean time by more than 1 standard deviations?

The standard deviation of the exponential distribution is the same as the mean, so this is P(X > 5000).

$P(X > x) = e^{-0.0004*5000} = 0.1353$

0.1353 = 13.53% probability that the lifetime exceeds the mean time by more than 1 standard deviations

4 0

2 years ago

Which question is equivalent to 30/3+x

8090 [49]

Answer:

X+10 I think

Step-by-step explanation:

4 0

3 years ago

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Which set is a function?

Margarita [4]

B is a function because a function cannot have an X value with more than one Y value.

8 0

3 years ago