Answer:
The standard deviation of the sample is 0.0064.
Step-by-step explanation:
The standard deviation of a sample of length n of a population with standard deviation is given by the following formula:
In this problem, we have that:
61 randomly selected gas stations. This means that
The standard error of the mean is $0.05. This means that .
What is the standard deviation of the sample?
The standard deviation of the sample is 0.0064.
Answer:
The last one .
Step-by-step explanation:
1) There are three trigonometric ratios for right-angled triangles.
In a right triangle, the hypotenuse, h, is the side opposite the right angle. Relative to the acute angle θ, check the attachment, the legs are called the opposite side, o, and the adjacent side a.
2) In this case, we are given a length and an angle to find x and y.
Let's find x first. To find x we need to use .
Find y.
Notice that, we can use the Pythagorean Theorem to find y.
3) Round them off to the nearest tenth.
Therefore, the correct choice is the last one .
