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FromTheMoon [43]
2 years ago
7

Twelve different video games showing drug use were observed. The duration times of drug use were​ recorded, with the times​ (sec

onds) listed below. What requirements must be satisfied to test the claim that the sample is from a population with a mean greater than 75 ​sec? Are the requirements all​ satisfied?
86 13 623 50 0 53 198 45 172 0 2 59

What requirements must be​ satisfied? Select all that apply.

A. Either the population is normally​ distributed, or ngreater than​30, or both.

B. The conditions for a binomial distribution must be satisfied.

C. At least one observation must be above or below 75 sec.

D. The sample observations must be a simple random sample.
Mathematics
1 answer:
Amanda [17]2 years ago
4 0

the answer to the question will be c

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Step-by-step explanation:

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What are the solutions to 2x^2+7y=4 ? Select all that apply.
liberstina [14]

Answer:

x = -1/2 , 4

Step-by-step explanation:

1) If any individual factor on the left side of the equation is equal to 0, the entire expression will be equal to 0.

2x+1=0

x−4=0

2) Set the first factor equal to 0.

2x+1=0

3) Subtract 1 from both sides of the equation.

2x=−1

4) Divide each term by 2 and simplify.

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5) Cancel the common factor of 2.

x= −1/2

6) Move the negative in front of the fraction.

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7) Set the next factor equal to 0 and solve.

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8) The final solution is all the values that make

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7 0
3 years ago
Please help me I NEED HELP IT WILL BE QUICK 16 points
k0ka [10]

Answer:

See below

Step-by-step explanation:

1. 11^2

2. No

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4. 4^2

5. 9^2

6. No

7. 20^2

8. No

9. 15^2

Hope that helps! :)

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2 years ago
At a perfume factory, fragrance designers are making Green Blossom perfume by mixing New Grass fragrance with 3/4 times as much
sveta [45]
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3 years ago
3x + 8 < 4(x - 3)Solve the inequality and graph the solution set.
solmaris [256]

Step-by-step explanation:

3x+8<4x−12

Move all terms containing x

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Tap for more steps...

−x+8<−12

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−x<−20

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Interval Notation:(20,∞)

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