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Laabri

Unit 4 Test

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Last updated about 2 years ago
20 Nsɛmmisa
Hyɛ no nsow a efi ɔkyerɛwfo no hɔ:

You may use a calculator. All cell phones must be silenced and put away in your backpack.

You may use a calculator. All cell phones must be silenced and put away in your backpack.

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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

The YMCA did a sample survey to see if there was an interest in starting a Rugby program for boy and girl athletes. The results were broken down by gender in the following two-way table.

Fill-in the totals, and answer questions 2-6 based on the data in the table.

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2.

What percentage of athletes are boys? If needed, round to the nearest tenth of a percent.

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3.

What percentage of boy athletes said they liked Rugby? If needed, round to the nearest tenth of a percent.

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4.

A youth athlete is chosen at random at the YMCA. What is the probability that the athlete chosen is a girl? Round to the nearest percent.

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5.

A youth athlete is chosen at random at the YMCA. What is the probability that the athlete chosen, given they are a girl, likes Rugby? Round to the nearest whole percent.

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6.

A youth athlete is chosen at random at the YMCA. What is the probability that the athlete chosen, given they like rugby, is a girl? Round to the nearest whole percent.

Yellowstone National Park was designated a national park in 1872. It is 3,471 square miles of natural habitat and home to 67 species of mammals.

Answer questions 7-10 about the Yellowstone Nation Park.

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7.

In recent years, the population of elk has been about 10,000 in Yellowstone National Park during the summer. What is the population density of elk per square mile?

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8.

In the summer, the population of mule deer is about 3,000 in Yellowstone National Park. What is the population density of deer per square mile?

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9.

Using your answers from questions 7 and 8, determine how many more times dense the elk population is compared to the deer population in Yellowstone.

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10.

What is the price per a square foot for this 3,247 ft2 home in Yellowstone, MT?

Label and round your answer to the nearest penny.

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11.

Google Map of Tremper to Central High School

Calculate the average miles per hour to travel 15.8 miles from Tremper to Central High School in 24 minutes.

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12.

In a college travel club, 17 students voted on 3 destinations for spring break: San Diego, Lake Havasu, and Rocky Point. Use the results of their choices shown in the preference table below to answer questions 12-14.

How many votes are needed to win a simple majority in this election?

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13.

Since no location had a simple majority after counting the 1st choice votes, employ the Instant Runoff Method to determine the winning destination for spring break. Which location wins the instant runoff?

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14.

Consider the following district map with 5 districts. The red squares represent Party A voters, and the blue squares represent Party B voters. Each district has 5 voters.

Answer the following questions based on the district map above. Note Party B voters are labeled with a lower case b.

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15.
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17.

Based your percentages, decide if the district map is fair. Explain your answer using complete sentences.

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18.

Calculate the EG. Based on your EG, decide if the map is fair in terms of waisted votes. Explain your answer using complete sentences.

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19.

Calculate the Polsby-Popper Score (PPS) for district #1. Based on your PPS, decide if the district is fair based on compactness. Explain your answer using your PPS and complete sentences.

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20.

BONUS: Calculate the Reock Ratio (RR) for district #1. Based on your RR, decide if the district is fair based on compactness. Explain your answer using your RR and complete sentences.

,where r is the radius of the circle encompassing the district.