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evablogger [386]
3 years ago
14

Among fatal plane crashes that occurred during the past 6565 ​years, 613613 were due to pilot​ error, 7575 were due to other hum

an​ error, 470470 were due to​ weather, 311311 were due to mechanical​ problems, and 342342 were due to sabotage. Construct the relative frequency distribution. What is the most serious threat to aviation​ safety, and can anything be done about​ it?
Mathematics
1 answer:
Aleksandr [31]3 years ago
6 0

We have different information and we need to make a table of that, so

cause...................Relative Frequency

Pilot Error............................613

Othe human error.............75

Weather...............................470

Mechanical Problems.....311

Sabotage............................342

Total: 1811

To calculate the relative distribution we need basically divide by the total and multiply for 100.

cause................................Relative Frequency

Pilot Error............................613/1811*100 =33.84%

Othe human error.............75/1811*100 = 4.1%

Weather...............................470/1811*100 = 25.95%

Mechanical Problems.....311/1811*100 = 17.17%

Sabotage...........................342/1811*100 = 18.88%

Total: 100%

So the relative frequency distribution is,

cause...................................Relative Frequency

Pilot Error............................33.84%

Othe human error.............4.1%

Weather..............................25.95%

Mechanical Problems.....17.17%

Sabotage...........................18.88%

Total: 100%

The vast majority of failures are made by pilots. The best thing to do is offer them more training. Many of these problems are due to ignorance of the terrain or carelessness due to the standardized level of security that flights generally have. Lack of practice in extreme situations can cause these problems.

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A cylindrical container has a radius of 3 centimeters and a height of 12 centimeters. The container is filled with water up to t
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Answer:

volume of empty space = 141.3 cm³

Step-by-step explanation:

volume of empty space = volume of the cylinder - volume of water

First, we need to calculate the volume of the container

volume of a cylinder = πr²h

 where r = radius of the container   and   h is the height of the container

r = 3cm  and h = 12 cm    π is a constant which is ≈ 3.14

volume of a cylinder = πr²h

                                  =3.14 × 3²×12

                                   =3.14×9×12

                                    =339.12 cm³

We will proceed to find the volume of water

since liquid will take the shape of its container,

then volume of water =  πr²h

r is the radius of the container   and    h is the height of the water

r = 3cm    and   h = 7cm      

volume of water =  πr²h

                             = 3.14 ×3²×7

                              =3.14×9×7

                              =197.82 cm³

volume of empty space = volume of the cylinder - volume of water

                                          =339.12 cm³    -    197.82 cm³

                                          = 141.3 cm³

OR

WE CAN SOLVE DIRECTLY

height of empty space = height of container - height of water

                                       = 12 - 7

                                        =5 cm

volume of empty space = πr²h

                                        =3.14×3²×5

                                        =3.14×9×5

                                         =141.3 cm³

volume of empty space = 141.3 cm³

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<u><em>Answer:</em></u>

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<u><em>Explanation:</em></u>

<u>To convert a decimal to a fraction:</u>

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3- Simplify the fraction you have

<u>Now, for the given problem:</u>

<u>The given decimal is 0.62, following the above steps:</u>

<u>Step 1: </u>

0.62 = \frac{0.62}{1}

<u>Step 2:</u>

We have two digits after the decimal point, so to eliminate the decimal point, we will multiply the numerator and the denominator by 100

0.62 = \frac{0.62}{1} * \frac{100}{100} = \frac{62}{100}

<u>Step 3:</u>

We can note that, in the fraction obtained from step 2, both the numerator and the denominator are divisible by 2, so we simplify as follows:

\frac{62}{100} = \frac{62/2}{100/2} =\frac{31}{50}

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