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julia-pushkina [17]
3 years ago
12

Write down the first even multiple of 7.

Mathematics
1 answer:
user100 [1]3 years ago
5 0

Answer:

3.5

Step-by-step explanation:

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A rectangle has a 15 to 20. Identify the ratio.
marishachu [46]

Answer:

15:20

15/20

15 to 20

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Step-by-step explanation:

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erastovalidia [21]

Answer:

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Yoko buys candy that costs $8 per pound. She will spend $40 on candy. What are the possible numbers of pounds she will buy?
sergiy2304 [10]

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5pd

Step-by-step explanation:

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2 years ago
True or false? I don’t know how to tell any of this stuff if anyone could give pointers on how to tell which is which that would
mafiozo [28]
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5 0
3 years ago
Does anyone know the answers to these?
dem82 [27]

Step-by-step explanation:

a. The point estimate is the mean, 47 days.

b. The margin of error is the critical value times the standard error.

At 31 degrees of freedom and 98% confidence, t = 2.453.

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MoE = 4.42

c.  The confidence interval is:

CI = 47 ± 4.42

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d. We can conclude with 98% confidence that the true mean is between 42.58 days and 51.42 days.

e. We can reduce the margin of error by either increasing the sample size, or using a lower confidence level.

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3 years ago
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