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gayaneshka [121]
2 years ago
6

The money in Maya’s college savings account earns 2 1/5% interest. Which value is less than 2 1/5%?

Mathematics
1 answer:
Nadya [2.5K]2 years ago
6 0

Answer:

u be mumu go ask ur father that one

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I don’t know the answer but I noticed you name and saw it. Nice name from shiba.
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Fine the value of X
makvit [3.9K]

Answer:

30

Step-by-step explanation:

60/40=3/2

105/40+x = 3/2

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x=70-40 = 30

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Step-by-step explanation:

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What is the slope of the line through (2,-2)and(9,3)?
Arturiano [62]

Answer:

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3 years ago
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Are you getting enough sleep? Many kids aren’t getting enough sleep, and TV might be part of the problem. Among 2002 randomly se
Naya [18.7K]

Using the z-distribution, it is found that the lower bound of the 99% confidence interval is given by:

d. 68.39%.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

In this problem, we have a 99% confidence level, hence\alpha = 0.99, z is the value of Z that has a p-value of \frac{1+0.99}{2} = 0.995, so the critical value is z = 2.575.

The sample size and estimate are given by:

n = 2002, \pi = 0.71

Hence, the lower bound is given by:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.71 - 2.575\sqrt{\frac{0.71(0.29)}{2002}} = 0.6839

Hence the lower bound is of 68.39%, which means that option D is correct.

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ1

4 0
2 years ago
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