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pshichka [43]
3 years ago
5

The board of directors of a company knows that the probability that carbon emissions from the company’s factory exceed the permi

ssible level is 35%. They hire a consultant who uses a carbon footprint calculator to test the emissions level. The test, which has an accuracy rate of 85%, indicates that the factory's carbon emissions are within the permissible level.
Given the test result, the probability that carbon emissions from the factory are actually within the permissible level is .
Mathematics
2 answers:
UNO [17]3 years ago
8 0

Answer:

The probability that carbon emissions from the factory are actually within the permissible level is  0.9132

Step-by-step explanation:

-let x represent when the emissions  exceed the permissible level

-let y represent when the emissions does not exceed the permissible level

-let p represent when the test indicate that the factory's carbon emissions  exceed the permissible level

-let q represent when the test indicate that the factory's carbon emissions  does not exceed the permissible level  

Probability that the the factory's carbon emissions exceed the permissible level and the test indicates that the factory's carbon emissions are not within the permissible level P(xq) =0.35*0.15= 0.0525

Probability that the factory's carbon emissions does not exceed the permissible level and the test indicates that the factory's carbon emissions are within the permissible level P(yp) = (1-.35)*0.85=0.65*0.85= 0.5525

the probability that carbon emissions from the factory are actually within the permissible level =  0.5525/(0.5525 + 0.0525) =  0.9132

jekas [21]3 years ago
3 0

the real answer is D.  0.9132

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zubka84 [21]

The measures of central tendency for this data set are as follows:

  1. Mean = 3.55.
  2. Median = 3.5.
  3. Mode = 3.

<h3>How to calculate measures of central tendency?</h3>

In Mathematics, there are three (3) main measures of central tendency and these include the following:

  • Mean
  • Median
  • Mode

For the mean, we have:

Mathematically, the mean for this data set would be calculated by using this formula:

Mean = [F(x)]/n

For the total number of data, we have:

F(x) = 0 + 1 + 1 + 1 + 2 + 2 + 3 + 3 + 3 + 3 + 4 + 4 + 4 + 5 + 5 + 5 + 6 + 6 + 6 + 7

F(x) = 71

Substituting the parameters into the formula, we have:

Mean = [F(x)]/n

Mean = 71/20

Mean = 3.55.

For the median, we have:

First of all, we would order the data from lowest to highest and then determine the median as follows:

Data = {0, 1, 1, 1, 2, 2, 3, 3, 3,} 3, 4, {4, 4, 5, 5, 5, 6, 6, 6, 7}

Median = {3 + 4}/2

Median = 7/2

Median = 3.5.

<h3>How to calculate the mode?</h3>

A mode refers to the most frequently occurring number in a data set. Thus, the mode for this data set is equal to 3.

In conclusion, a box plot of the measures of central tendency for this data set is shown in the image attached below.

Read more on mean here: brainly.com/question/9550536

#SPJ1

6 0
2 years ago
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Answer:

y=4/5x

Step-by-step explanation:

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Answer:

Step-by-step explanation:

48 + 14 / 2 =  31

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3 years ago
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Aleksandr [31]

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6 0
3 years ago
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If x an integer and 2x +8 &lt;22 and 3x &gt;9, how many possible values of x are there?
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Answer:

3 values

Step-by-step explanation:

2x +8 <22 and 3x >9

Solve the two inequalities separately and then put them back together

2x +8 <22

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2x +8-8 <22 -8

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