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In a poll conducted among 2000 college freshmen to ascertain the political views of college students. the accompanying data were obtained. Determine the empirical probability distribution associated with these data. $$ \begin{array}{lccccc} \hline \text { Political Views } & \text { A } & \text { B } & \text { C } & \text { D } & \text { E } \\ \hline \text { Respondents } & 52 & 398 & 1140 & 386 & 24 \\ \hline \end{array} $$ A: Far left B: Liberal C: Middle of the road D: Conservative E: Far right

Short Answer

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The empirical probability distribution associated with the given data is: $$ \begin{array}{lccccc} \hline \text { Political Views } & \text { A } & \text { B } & \text { C } & \text { D } & \text { E } \\\ \hline \text { Probability } & 0.026 & 0.199 & 0.57 & 0.193 & 0.012 \\ \hline \end{array} $$

Step by step solution

01

Understand the provided data

We are given the responses from 2000 college freshmen about their political views. The table shows the number of students who identified themselves as Far left (A), Liberal (B), Middle of the road (C), Conservative (D), and Far right (E). We will use this data to find the empirical probability distribution. $$ \begin{array}{lccccc} \hline \text { Political Views } & \text { A } & \text { B } & \text { C } & \text { D } & \text { E } \\\ \hline \text { Respondents } & 52 & 398 & 1140 & 386 & 24 \\ \hline \end{array} $$
02

Calculate the total number of respondents

To determine the empirical probability distribution, we first need to know the total number of respondents. We can find this by adding up the number of respondents in each category. Total respondents = 52 (A) + 398 (B) + 1140 (C) + 386 (D) + 24 (E) = 2000
03

Calculate the probability of each political view

Now we can calculate the empirical probability of each political view by dividing the number of respondents in each category by the total number of respondents. Probability of A (Far left): \( \frac{52}{2000} = 0.026 \) Probability of B (Liberal): \( \frac{398}{2000} = 0.199 \) Probability of C (Middle of the road): \( \frac{1140}{2000} = 0.57 \) Probability of D (Conservative): \( \frac{386}{2000} = 0.193 \) Probability of E (Far right): \( \frac{24}{2000} = 0.012 \)
04

Present the empirical probability distribution

Now we have calculated the probability of each political view. We can present the empirical probability distribution as follows: $$ \begin{array}{lccccc} \hline \text { Political Views } & \text { A } & \text { B } & \text { C } & \text { D } & \text { E } \\\ \hline \text { Probability } & 0.026 & 0.199 & 0.57 & 0.193 & 0.012 \\ \hline \end{array} $$

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Probability Calculation
Understanding probability is essential not only in statistics but also in real-world decision-making.

When calculating the empirical probability of an event, we divide the number of times the event occurs by the total number of opportunities for the event to occur. In educational settings, such as using this method to understand the political views of college freshmen, the formula can be simplified as the count of respondents with a particular view divided by the total count of respondents. Here is a step-by-step guide to understanding probability calculation:
  • Identify the total number of trials or participants. In our case, it's the total number of students surveyed, which is 2,000.
  • Count how many times the event of interest occurs. This means tallying up each political view category.
  • Divide the frequency of each event by the total number of trials to get the probability for each category.
Using this approach enables students to see how each political view's popularity compares relative to the entire group surveyed.
Political Views Statistical Analysis
Statistical analysis of political views is crucial in understanding the political climate within a certain demographic.

In the case of college freshmen, we can provide insights into the political leanings of younger voters, which might have implications for future electoral cycles. By conducting a statistical analysis of the data gathered from surveys, we can determine the distribution and frequency of various political beliefs within the population.

For instance:
  • Liberal and conservative wings can be compared to gauge polarization.
  • We can examine the tendencies towards moderate ('Middle of the road') views.
  • Identify outliers, like the 'Far left' and 'Far right' groups.
This form of analysis helps in understanding not just mere preferences, but also in identifying trends and potential shifts in the political spectrum among college students.
Data Interpretation in Mathematics
Data interpretation is all about making sense of numbers and figures, turning raw data into information that can be understood and acted upon.

In mathematics, it involves analyzing the results from various mathematical processes and understanding their implications. A student might calculate probabilities correctly but still struggle to interpret what those numbers mean. In our political views survey scenario:
  • A higher probability for 'Middle of the road' may indicate a tendency for moderate views among college freshmen.
  • Lower probabilities for 'Far left' and 'Far right' might suggest these views are not as prevalent within the group studied.
Effective data interpretation allows students to draw conclusions and make informed decisions based on mathematical outcomes.
College Freshmen Survey Analysis
Surveys are a common method for gathering information about populations, and analyzing these surveys requires a thoughtful approach.

When examining a college freshmen survey, it's essential to consider the context—these students are at the beginning of their higher education journey, and their views might be being shaped during this formative period.

There are important steps in survey analysis:
  • Determine the survey's scale and scope.
  • Analyze the results to uncover any patterns or trends.
  • Consider the implications of these patterns on larger scales, such as their potential influence on campus culture or future political engagement.
  • Reflect on the reliability of the data and consider factors that might influence the responses, such as social desirability bias or the current political climate.
Analyzing surveys of college freshmen can provide insights into the future political landscape and inform institutions on the views and values that are important to this cohort.

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Most popular questions from this chapter

Robin purchased shares of a machine tool company and shares of an airline company. Let \(E\) be the event that the shares of the machine tool company increase in value over the next \(6 \mathrm{mo}\), and let \(F\) be the event that the shares of the airline company increase in value over the next \(6 \mathrm{mo}\). Using the symbols \(\cup, \cap\), and \({ }^{c}\), describe the following events. a. The shares in the machine tool company do not increase in value. b. The shares in both the machine tool company and the airline company do not increase in value. c. The shares of at least one of the two companies increase in value. d. The shares of only one of the two companies increase in value.

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