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Solnce55 [7]
3 years ago
13

A two-way frequency table is shown below that displays the relationship between the region of the country in which people live a

nd the type of music preferred. We took a sample of 193 people and recorded the following results:
              Country Music      Rock      Total
West               26                   15            41
East                24                   22            46
South              7                    33            40
North              41                   25            66
Total               98                   95           193


What is the probability (rounded to the nearest whole percent) that a randomly selected person is from the western region of the country if he or she prefers country music? A. 26%
B. 13%
C. 63%
D. 27%
Mathematics
1 answer:
djverab [1.8K]3 years ago
7 0
We are given the data for the number of persons from different areas versus their music preference. We are asked to determine the probability that a person likes country music if he selected is random from the western region.

The total number of persons in the West:

26 + 15 + 41 = 82

Number of persons who like country music = 26

Probability = 26/82 = 0.3171
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Nina [5.8K]
X= 70 degrees
Y= 70 degrees

Understand that every triangle has three angles and they add up to 180 degrees.

If I split this triangle in half the total degrees of each individual piece will be 90 degrees. A split in the isosceles triangle will also cause the 40 degrees to halved (thus, how I got 20 degrees in our 90 triangle).

Since we are dealing with an isosceles triangles two of the sides will be equal (hence, the dashes on the triangles sides). Therefore, x and y will also be equal.

Now if our 40 degreed angle is now 20 degrees, we have an unknown angle and the triangle in total now adds up to 90 degrees we can set up an equation.

20 + y = 90

Y = 70

Since X and Y are equal, X will also be 70.

If we return to to the isosceles triangle before it was split (use your photo for reference) and we add 40 +70 + 70 we will get 180 degrees. Which is the standard total of degrees for any triangle that is not a 90 degreed triangle.

I hope this helps. Feel free to ask questions.

Below I uploaded my work.

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V125BC [204]

Answer:

119

Step-by-step explanation:

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pentagon [3]

Step-by-step explanation:

Take a look at the picture, And tell me if am wrong

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Answer:

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Step-by-step explanation:

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