Answer: The length of STV is about 76.83 in.
Step-by-step explanation:
The length of an arc is given by :-
, where r= radius of the cirle,
is the central angke made by arc.
As per given , Radius of the circle : r= 20 in
Central angle of arc SCV =
Then, Central angle of arc SCV =
Then, the length of the arc STV =
Hence, the length of STV is about 76.83 in.
Answer:
Distance of the trail from the start to the end is miles
Step-by-step explanation:
Distance from the start of a trail to the bird lookout point= miles
Distance from the bird lookout point to the end of the trail = miles
We want to find the difference of the trail from the start to the end, that is, how far is the starting point from the end point.
The distance between the start and end points
miles
Answer:
The minimum percentage of the commuters in the city has a commute time within 2 standard deviations of the mean is 75%.
Step-by-step explanation:
We have no information about the shape of the distribution, so we use Chebyshev's Theorem to solve this question.
Chebyshev Theorem
At least 75% of the measures are within 2 standard deviations of the mean.
At least 89% of the measures are within 3 standard deviations of the mean.
An in general terms, the percentage of measures within k standard deviations of the mean is given by .
Applying the Theorem
The minimum percentage of the commuters in the city has a commute time within 2 standard deviations of the mean is 75%.