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Snowcat [4.5K]
3 years ago
5

Please check my answer! 9 points!

Mathematics
1 answer:
ZanzabumX [31]3 years ago
6 0
I got D for the answer ...
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identify the kind of sample that is described. the superintendent of a large school district wants to test the effectiveness of
Andrei [34K]

The sample used in this problem is classified as cluster.

<h3>How are samples classified?</h3>

Samples may be classified as:

  • Convenient: Drawn from a conveniently available pool.
  • Random: All the options into a hat and drawn some of them.
  • Systematic: Every kth element is taken.
  • Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
  • Stratified: Also divides the population into groups. Then, a equal proportion of each group is surveyed.

For this problem, a group of schools is selected, and then the new program is applied to all students in these school, meaning that all elements in the cluster are surveyed, so cluster sampling is used.

More can be learned about classification of samples at brainly.com/question/25122507

#SPJ1

7 0
2 years ago
Please help!!!!!!!!!
lesantik [10]

Answer:

-(-4)

Step-by-step explanation:

3 0
3 years ago
Carlos climbs 6 miles for every 3/4
JulsSmile [24]
To solve this problem we can make the following rule of three
 6 ---> 3/4
 x ----> 1
 Clearing x we have:
 x = (1/3/4) * (6)
 x = (4/3) * (6)
 x = 24/3
 x = 8
 Answer:
 Carlos climbs 8 miles for every mile Lara climbs.
4 0
3 years ago
Read 2 more answers
Need help ASAP!!! Please help
cestrela7 [59]
The range of a function is the set of numbers used as y-coordinates.

Let's look at the y-coordinates of the points in the graph.
There are points in the graph with all y-coordinates greater than -3.
There are points in the graph with all y-coordinates less then -3.
At exactly -3, there is no point on the graph with that y-coordinate.
We expect the graph to behave as it is shown above 7 and below -7, so the only value excluded from the y-coordinates is -3.

Answer: B. All real numbers except -3
8 0
3 years ago
Which inequality represents the statement? The ages (a) of s group of travelers all exceeded 17 years and were no more then 54 y
klasskru [66]

Answer:

The inequality that represents the age of the group, "x", is: 17 < x \leq 54

Step-by-step explanation:

To express this problem in an inequality we will attribute the age of the members on the group with the variable "x". There are two available information about "x", the first states that every member of the group is older than 17 years, therefore we can create a inequality based on that:

x > 17

While the second data from the problem states that none of than is older than 54 years old, this implies that they can be at most that old, therefore the inequality that represents this is:

x\leq 54

In order for both to be valid at the same time x must be greater than 17 and less or equal to 54, therefore we finally have:

17 < x \leq 54

7 0
3 years ago
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