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Mashutka [201]
3 years ago
15

Richie and Saul are conducting a survey on the most popular board games played by students at their high school. Richie intervie

ws 25 boys from grades 9 through 12 and concludes that card games are the most popular among high school students. Saul speaks with 20 students, including girls and boys, from grades 9 through 12 and concludes that word games are the most popular among high school students. Whose generalization is valid? Why?
The generalization made by is valid because he included
Mathematics
2 answers:
Anon25 [30]3 years ago
8 0

Saul will be right because he is surveying every type of 9-12 grade, and he included both male and female students in his sample.

damaskus [11]3 years ago
7 0
Saul would be more valid considering the fact he is surveying all types of 9-12th graders and a more wide spreads variety of people, not only one genre.
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Circle towns limit form a perfectly circular shape that has a population of 20000 in the population density of 480 people per sq
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Answer:

D =\frac{P}{\pi X^2}

And solving for the radius we got:

X = \sqrt{\frac{P}{\pi D}}

And replacing the data given we got:

X = \sqrt{\frac{480 \frac{people}{km^2}}{\pi *20000 people}}= 0.0874Km

And this value converted to meters is X = 87.40 m

Step-by-step explanation:

For this case we know the population size P = 20000 and we also know the population density D = 480 \frac{people}{km^2}

We can assume that the area is a circle. We also know that the formula for the population density is given by:

D= \frac{P}{A}

Where P represent the number of people and A the area. Since we are assuming a circle then the area is given by:

A = \pi X^2

With X the radius of the circle

And then the populationd density become:

D =\frac{P}{\pi X^2}

And solving for the radius we got:

X = \sqrt{\frac{P}{\pi D}}

And replacing the data given we got:

X = \sqrt{\frac{480 \frac{people}{km^2}}{\pi *20000 people}}= 0.0874Km

And this value converted to meters is X = 87.40 m

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