A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN: 9780134753119
Author: Sheldon Ross
Publisher: PEARSON
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Question

Please answer the following question and show step by step detail of how you answered parts d and e.

**Table Explanation:**

The table shows data about players from the New England Patriots, categorized by their weight (in pounds) and years of experience. It includes three weight categories (Under 200, 200–300, Over 300) and four experience categories (Rookie, 1–5 years, 6–10 years, Over 10 years). The total number of players in each category is also provided.

| Weight (lb) | Rookie (Y₁) | 1–5 (Y₂) | 6–10 (Y₃) | Over 10 (Y₄) | Total |
|-------------|------------|----------|-----------|--------------|-------|
| Under 200 (W₁) | 3          | 5        | 0         | 0            | 8     |
| 200–300 (W₂)   | 11         | 21       | 7         | 4            | 43    |
| Over 300 (W₃)  | 4          | 7        | 5         | 0            | 13    |
| Total       | 18         | 33       | 12        | 4            | 62    |

**Questions:**

Compute the following conditional probabilities directly; do not use the conditional probability rule.

a. A randomly selected player is a rookie.

b. A randomly selected player weighs under 200 pounds.

c. A randomly selected player is a rookie, given that he weighs under 200 pounds.

d. A randomly selected player weighs under 200 pounds, given that he is a rookie.

e. Interpret your answers for parts (a)–(d) in terms of percentages.
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Transcribed Image Text:**Table Explanation:** The table shows data about players from the New England Patriots, categorized by their weight (in pounds) and years of experience. It includes three weight categories (Under 200, 200–300, Over 300) and four experience categories (Rookie, 1–5 years, 6–10 years, Over 10 years). The total number of players in each category is also provided. | Weight (lb) | Rookie (Y₁) | 1–5 (Y₂) | 6–10 (Y₃) | Over 10 (Y₄) | Total | |-------------|------------|----------|-----------|--------------|-------| | Under 200 (W₁) | 3 | 5 | 0 | 0 | 8 | | 200–300 (W₂) | 11 | 21 | 7 | 4 | 43 | | Over 300 (W₃) | 4 | 7 | 5 | 0 | 13 | | Total | 18 | 33 | 12 | 4 | 62 | **Questions:** Compute the following conditional probabilities directly; do not use the conditional probability rule. a. A randomly selected player is a rookie. b. A randomly selected player weighs under 200 pounds. c. A randomly selected player is a rookie, given that he weighs under 200 pounds. d. A randomly selected player weighs under 200 pounds, given that he is a rookie. e. Interpret your answers for parts (a)–(d) in terms of percentages.
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