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expeople1 [14]
3 years ago
5

When to reverse the inequality sign when you are solving an inequality

Mathematics
1 answer:
Serga [27]3 years ago
8 0
When you're dividing by a negative number

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The director of the library calculates that 29% of the library's collection is checked out. If the director is right, what is th
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The probability that the proportion of books checked out in a sample of 412 books would differ from the population proportion by less than 4% is P=0.9255.

Step-by-step explanation:

The population's proportion is \pi=0.29

If we take a sample of 412 books (n=412), we have a standard deviation of the sampling distribution of:

\sigma_M=\sqrt{\frac{\pi(1-\pi)}{n}}=\sqrt{\frac{0.29*0.71}{412}}=\sqrt{0.0005} =0.0224

We have to calculate the probabilty that the sample proportion will be between 0.25 and 0.33.

z_1=(0.25-0.29)/0.0224=-0.04/0.0224=-1.7857\\\\z_2=1.7857\\\\\\P(0.25

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Statistics are numerical data.<br> True<br><br> False
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Select the correct answer
Marta_Voda [28]

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c

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reason for is because when you add all the like terms you end up with c

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You work 40 hours a week and make $25 an hour. Each paycheck, the police union deducts $50 for dues. You also pay $264 every pay
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Step-by-step explanation:

40*25= 1000

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