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taurus [48]
2 years ago
14

Can yall help me with this? Thank you!

Mathematics
1 answer:
Ray Of Light [21]2 years ago
4 0

Answer:

<u>1260 degrees (1260°)</u>

Step-by-step explanation:

<u>Formula to Find Sum of Interior Angles of a Polygon</u>

  • 180 (n - 2)
  • n is the <u>number of sides</u> of the polygon

<u>Nonagon (9-sided polygon)</u>

  • 180 (9 - 2)
  • 180 × 7
  • <u>1260 degrees (1260°)</u>
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A student wants to report on the number of movies her friends watch each week. The collected data are below: 2 14 1 2 0 1 0 2 Wh
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The student's friend watch 1.5 movies every week.

Data provided to us {2, 14, 1, 2, 0, 1, 0, 2}.

Number of data values = 8

Sorted or rearranged data {0, 0, 1, 1, 2, 2, 2, 14}

Median of the data provided;

Median is the mid point value of the data provided to us, but as in this case there are 8 data provided (even number of data), we will take the average of the 2 mid values of the data.

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\bold{Median=\dfrac{1+2}{2} = 1.5}

Mean of the data provided;

Mean=\dfrac{Sum\ of\ all\ data\ values}{Number\ of\ data\ values} \\\\Mean= \dfrac{(0+0+1+1+2+2+2+14)}{8}\\\\Mean=2.75

As we know, The data values provided are 0, 1 and 2, and there is 14 as well in the data which is the maximum value in the data provided to us but the value is far from the other data values provided to us. Therefore, the data value 14 is considered to be an outlier.

An outlier is the maximum value that increases the mean, which makes it larger than it should be.

If we were to compute the mean without the outlier,

Mean=\dfrac{Sum\ of\ all\ data\ values}{Number\ of\ data\ values} \\\\Mean= \dfrac{(0+0+1+1+2+2+2)}{7}\\\\Mean=1.1428

Now, we have understood that the mean is sensitive to outlier can be easily manipulated. thus, mean is not the right option to go for in this case.

Therefore, the median value of 1.5 is the right option.

Hence, the student's friend watch 1.5 movies every week.

To know more visit:

brainly.com/question/1363341

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Since, Joseph wants to add a diamond shape every 0.4 ft along the sash.

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⇒ The number of diamonds he will need to complete the sash= \frac{80}{4}=20

Hence,  the number of diamonds he will need to complete the sash= 20


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