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malfutka [58]
2 years ago
15

Paul surveyed students in a high school about their favorite sport of the 1, 200 students in the school, 67 tenth-grade students

were surveyed. More than half of the 67 students said their favorite sport is basketball. Based on the survey, Paul concluded that the favorite sport of most high school students is basketball.
Why is Paul's conclusion incorrect?

1 Paul surveyed too many students.
2 Paul's survey sample only included tenth graders.
3 Paul did not survey any middle school students.
4 Paul did not include enough sports in the survey.​
Mathematics
1 answer:
Leno4ka [110]2 years ago
5 0

Answer:

2 Paul's Survey sample only included tenth graders

Step-by-step explanation:

The reson why this is your answer is simple

Because this is true, he ONLY surveyed tenth-graders. He should have found for all of the students, including the other 1,100 students that didn't get surveyed.

Thanks!

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Answer:

Either:  1 neg, 3 pos, 0 imaginary; 1 neg, 1 pos, 2 imaginary

Step-by-step explanation:

Look for the positive possibilities first.  Count the numbe of sign changes then subtract 2, if possible, as many times as you can.

There are 3 sign changes.  So the possible positive roots are either 3 or 1.

Now look for the negative possibilities.  Replace each x with a -x and then count the sign changes.  Replacing with -x's gives you this polynomial:

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i     0       2

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3 years ago
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Answer:

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Step-by-step explanation:

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