Nine students were asked how many miles they live from the school. Their answers are listed below. 3, 3, 3, 3, 7, 5, 3, 7, 6 Fin
1 answer:
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Answer:
B
Step-by-step explanation:
Using the rule of exponents
×
=
= 1
Given
×
=
=
= 1 → B
Answer:
Relative frequency:
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:
We can see that the most frequent cause is "mechanical problems", with a relative frequency of 0.45.