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elixir [45]
4 years ago
15

Wendy is paid $12 per hour and plans to work between 30 and 35 hrs per week. Identify the independent and dependent quantity . F

ind reasonable domain and range values.
A. Weekly pay ; hours worked ; 30 to 35 hrs ; $360 to $420
B. Weekly pay ; hours worked ; $360 to $420 ; 30 to 35 hrs
C. Hours worked ; weekly pay ; 30 to 35 hrs ; $360 to $420
D. Hours worked ; weekly pay ; 30 to 35 hrs ; $0 to $420
Mathematics
1 answer:
Archy [21]4 years ago
7 0
 I have come to believe the answer ia a 
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Among fatal plane crashes that occurred during the past 55 ​years, 415 were due to pilot​ error, 96 were due to other human​ err
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Answer:

Relative frequency:

\text{Pilot error}=415/1370=0.30\\\\\text{Other human error}=96/1370=0.07\\\\\text{Weather}=169/1370=0.12\\\\\text{Mechanical problems}=622/1370=0.45\\\\\text{Sabotage}=68/1370=0.05\\\\

The most serious threat to aviation safety is, according to this data, "mechanical failures". It can be improved by more rigorous inspection and better maintenance policies and execution.

Step-by-step explanation:

We have the data for fatal plane crashes. The sum of plane crashes is

We can calculate the relative frequency as:

\text{Pilot error}=415/1370=0.30\\\\\text{Other human error}=96/1370=0.07\\\\\text{Weather}=169/1370=0.12\\\\\text{Mechanical problems}=622/1370=0.45\\\\\text{Sabotage}=68/1370=0.05\\\\

We can see that the most frequent cause is "mechanical problems", with a relative frequency of 0.45.

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