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kicyunya [14]
4 years ago
9

The length of time (in months after maintenance) until failure of a bank’s surveillance television equipment has a weibull distr

ibution with α = 2 and β = 80 months. If the bank wants the probability of a breakdown before the next scheduled maintenance to be 0.02, how frequently should the equipment receive periodic maintenance?

Mathematics
1 answer:
miss Akunina [59]4 years ago
5 0

Answer:

There should be a periodic maintanance for every 1.27months

Step-by-step explanation:

The step by step calculation explaining how frequent the equipment should receive periodic maintenance <em><u>(Which are the activities carried out on equipment based on a stipulated time interval for the purpose of maintaining a smooth operation of a machine or equipment or on other asset.)</u></em> can be seen in the attached image below.

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Find the probability that a Type A bulb lasts at least 300 hours and a Type B bulb lasts at least 400 hours.
barxatty [35]

Answer:

P(X>3)P(X>4)=(1-F_1(3))(1-F_2(4))

Step-by-step explanation:

We require more information by I will explain in principle:

If Type A has at least 300 hours and Type B at least 400 hours.

(X>3)(Y>4)=P(X>3)P(X>4)

You need to determine the Probability density function of X and Y and then subtract 1 from both

P(X>3)P(X>4)=(1-F_1(3))(1-F_2(4))

This will give you the probability of the expression.

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3 years ago
A killer whale weighs 4.6 tons. Convert the weight to pounds.
Lena [83]

Answer:

9200

Step-by-step explanation:

3 0
3 years ago
The weight of a radioactive isotope was 96 grams at the start of an experiment. After one hour, the weight of the isotope was ha
zimovet [89]
The starting weight of the radioactive isotope = 96 grams

Weight after one hour is half of the starting weight. So the weight of the radioactive isotope after 1 hour = 48 grams

After 2 hours the weight is half as compared to the weight after previous hour. So weight after 2 hours = 24 grams.

This means, after every hour the weight is being halved. The half life of radioactive isotope is one hour.

Since after every hour, the weight is being halved, the weight of the isotope can be modeled by an exponential equation.

So,

Initial Weight = W₁ = 96
Change factor = 1/2 = 0.5

The general equation of the sequence will be:

\\  \\ W_{t}=96(0.5)^{t}

Here t represents the number of hours. Using various values of t we can find the weight of the radioactive isotope at that time.

We can plot the sequence using the above equation. The graph is attached below.

3 0
3 years ago
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Susan is making 8 casseroles. She uses 9 cans of beans. Each can is 16 oz. If she divides the beans equally among casseroles? Sh
belka [17]

Answer:

The correct answer will be 18

Step-by-step explanation:

First mutiply your object of the question which is 9 times 16 then make sure you have the right answer then divide it by 8 and 144 the answer you got, and you get 18

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2 years ago
Solve for the missing side length, rounded to the nearest tenth.
zaharov [31]

Answer: 5.2 mm 7 mm About mm

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4 years ago
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