Using the concepts of parameter and statistic, it is found that the correct option is:
- 2% is a statistic and 5% is a statistic.
<h3>Parameter and Statistic:</h3>
- If the information is taken from a sample, it is called a statistic.
- If the information is taken from a population, it is called a parameter.
In this problem, both percentages are taken from samples, hence both the 2% and the 5% represents statistics, and the first option is correct.
To learn more about the concepts of parameter and statistic, you can take a look at brainly.com/question/25959069
Answer:
b = -a
Step-by-step explanation:
We know that:
On a number line, the distance between 0 and b is the same distance that between 0 and a (but b and a are in opposite sides of zero).
And we know that, for example, when:
b = 2, a = -2
Remember that the distance between two values is given by:
|n - m|
Then the distance between 0 and b is:
|0 - b|
and the distance between 0 and a is:
|0 - a|
we have:
|-b| = |-a|
|b| = |a|
But the numbers are in opposite sides of the zero, so one must be positive and the other negative, then we can conclude that:
b = -a
or
-b = a
(these are equivalent)
Then the correct option is the first option:
b = -a
Shadufs were used as a means of transporting water for irrigation in ancient Egypt. They were used on canals and rivers to bring water to where it was needed.
Answer:
the answer is right there x.8.90.^.34>^
Step-by-step explanation:
Answer:
$7.90 per pound
Step-by-step explanation:
11.85/3 = half pound = $3.95
3.95x2 = 7.9 = 1 pound
