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Gnom [1K]
3 years ago
14

Example 2: Representative Sample

Mathematics
1 answer:
lions [1.4K]3 years ago
6 0

Answer:

The correct answer is b. Assign every student in the senior class a number from 1 to 314. Then, use a random number generator to select 30 students to poll.

Step-by-step explanation:

You will want that the sample you choose represents the total population, you can do it by random sampling and it requires an unbiased form of collecting data, in which every person has the same opportunity of being chosen.

The correct answer is b. Assign every student in the senior class a number from 1 to 314. Then, use a random number generator to select 30 students to poll, because it uses a random process to select the sample.

a. Poll everyone in your friend’s math class, is not the correct answer because the class is too large and it will take a lot of time and effort to ask everyboydy.

c. Ask every student who is going through the lunch line in the cafeteria who they will vote for, is not the correct answer because it is not a random process because the people in the luch line are similar and migth share opinions.

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2 years ago
Select all the statements below that are true of the following graph of the polynomial.
Serggg [28]

To find:

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Step by step solution:

1) Type of function (odd / even):

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Upon observing this graph we can see that the given graph is symmetrical about the origin, So it is an odd function.

2) To check whether (x-2) is a factor of the equation:

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3) To check whether there are 5 zeroes or not:

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Upon observing the graph we can see that the graph cut the x - axis for 5 times, thus it has 5 zeroes.

4) To check whether there are same amount of relative minimums as relative maximums:

Upon observing the graph we can see that there are 2 relative minimums and 2 relative maximums.

So we can see that there are same amount of relative maximums and minimums.

5) To check whether there is a relative minimum at (-1,-3)

To have a relative minimum at (-1,-3) there should be a minima at (-1,-3)

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1 year ago
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3 years ago
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