<h3>
Answer: Choice D) Stratified</h3>
Explanation:
This type of sampling is where you break the data into groups where there isn't any overlap. Then you select samples from each group. You may select the same amount from each group, or perhaps you select the items based on a weighted proportion. Note how one entire group is not sampled.
Contrast this with cluster sampling where again the data is broken into non-overlapping groups; however, this time we only select a few groups to sample every member of those groups selected. This time entire full groups are sampled.
Here's an example of each
- Consider the 50 states as each group. If we randomly select 10 people from each state (perhaps based on their state of birth), then we are conducting stratified sampling.
- If instead we randomly select 5 states, and sample every person in those states selected, then we are doing cluster sampling.
Answer: Acute (First option).
Step-by-step explanation:
1. You know that the angle ∠AOB must be 35°.
2. Then, you must place the midpoint of the protactor on the poinr O, which is the vertex of the angle.
3. As the side of the angle AO is lined up with the zero of the set of number that goes from 0 to 180, you must draw the ray between that set. Keeping this on mind, you obtain the angle ∠AOB shown in the figure attached.
4. By definition, when the measure of an angle is between 0° and 90° is called "Acute". Therefore, the angle ∠AOB is acute.
The relationship between the rope, the building, the tree and the ground is an illustration of similar triangles and equivalent ratios.
The building is 76ft tall
The height of the tree is given as:
The position of the tree is halfway between the building and the stake.
From the figure, the rope touches the top of the building, and the top of the tree.
This means that: the height of the building is twice the height of the tree.
So, we have:
Hence, the building is 76ft tall
Read more about similar triangles at:
brainly.com/question/14285697
Answer:
40 apps
Step-by-step explanation:
You have an 8:12 ratio. There are 60 seconds in a minute. 12*5=60. 8*5 = 40.
Answer:
Step-by-step explanation:
There's no answer here. Because -6<21.