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tia_tia [17]
3 years ago
11

Solving inequalities. x-3<(-2)

Mathematics
1 answer:
Reika [66]3 years ago
5 0

Isolate the x. Add 3 to both sides

x - 3 (+3) < -2 (+3)

x < -2 + 3

Simplify

x < (-2 + 3)

x < 1

x < 1 is your answer

hope this helps

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Let a population consist of the values ​cigarettes, ​cigarettes, and cigarettes smoked in a day. Show that when samples of size
Katen [24]

The "sample" with "mean absolute deviation" indicate about a sample mean absolute deviation is being used as an estimator of the mean absolute deviation of a​ population

  • Mean of the sample MAD=3.3
  • Population MAD =6.4

<h3>What does this indicate about a sample mean absolute deviation used as an estimator of the mean absolute deviation of a​ population?</h3>

Generally,  The MAD measures the average dispersion around the mean of a given data collection.

1/n \sum_i-1^{n} |x_i -m(X)|

In conclusion, for the corresponding same to mean

the sample  mean absolute deviation

7,7  ↔         0

7,21  ↔         7

7,22         ↔    7.5

21,7        ↔          7

21,21 ↔     0

21,22 ↔    0.5

22,7   ↔     7.5

Therefore

  • Mean of the sample MAD=3.3
  • Population MAD =6.4

Read more about mean absolute deviation

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5 0
2 years ago
The ____ is the vertical distance between two points.
Ugo [173]

Answer:

Slope

Step-by-step explanation:

6 0
3 years ago
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Can someone help me with the problems in the images
dezoksy [38]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
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We are studying the proportion of cities that have private garbage collector. We want a maximum error of 0.10 and a 95% confiden
True [87]

Answer:

The minimum number of cities we need to contact is 96.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence interval 1-\alpha, we have the following confidence interval of proportions.

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

In which

Z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is:

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

95% confidence interval

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

In this problem, we have that:

p = 0.5, M = 0.1

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

0.1 = 1.96*\sqrt{\frac{0.5*0.5}{n}}

0.1\sqrt{n} = 0.98

\sqrt{n} = 9.8

(\sqrt{n})^{2} = (9.8)^{2}

n = 96

The minimum number of cities we need to contact is 96.

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3 years ago
What are the solutions to 3n-1&gt;8 or 4n+3 &lt; -1? *​
hammer [34]

Answer:

3’d

Step-by-step explanation:

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