MathChic68
04.07.2019 •
Mathematics
Determine whether the given value is a statistic or a parameter. a sample of employees is selected and it is found that 55 % own a vehicle. choose the correct statement below. a. parameter because the value is a numerical measurement describing a characteristic of a sample. b. statistic because the value is a numerical measurement describing a characteristic of a sample. c. statistic because the value is a numerical measurement describing a characteristic of a population. d. parameter because the value is a numerical measurement describing a characteristic of a population.
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Ответ:
b.Statistic
Step-by-step explanation:
b.Statistic because the value is a numerical measurement describing a characteristic of a sample.
Ответ:
The width of the field is 35 meters.
Step-by-step explanation:
Recall that the perimeter of a rectangle is given by:
Where w is the width and l is the length of the rectangle.
We know that the perimeter is 150 meters. Thus:
Divide both sides by two:
We are given that the length is five meters longer than the width. So:
Substitute:
Combine like terms:
Subtract five from both sides:
And divide both sides by two. Hence:
Thus, the width of the rectangular field is 35 meters.