The table shows the educational attainment of the population of Mars, ages 25 and over, expressed in millions. It provides the data required to find the probability that a randomly selected Martian, aged 25 and over, has completed four years of high school only or is a male.### Table: Educational Attainment| | Years of High School | | Years of College | | ||----------------|----------------------|------------|------------------|------------|--------|| | Less than 4 | 4 only | Some (less than 4) | 4 or more | Total || Male | 12 | 24 | 20 | 18 | 74 || Female | 15 | 33 | 19 | 16 | 83 || Total | 27 | 57 | 39 | 34 | 157 |### Analysis1. **Columns and Rows:** - Columns represent years of education completed. - Rows represent the population divided by gender. 2. **Data Interpretation:** - Total number of males is 74. - Total number of females is 83. - Total population is 157.3. **Probability Calculation:** - We need to find the probability that a randomly selected individual is either a male or has completed four years of high school only. - The total number of individuals with four years of high school only is 57 (sum of 24 males and 33 females). - The number of males is already included in the total, which is 74. - Add the two, then subtract overlap (males who completed only four years of high school, already counted in both), so we have 74 + 57 - 24 = 107. - Total individuals is 157.Therefore, the probability is $ \frac{107}{157} $.

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Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

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Part a through c please.
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Grades earned in a class are recorded for 2 group of students (students taking only History and the others only taking Biology), the grades in those classes are summarized below. A B C History 19 9 20 Biology 7 2 10 Total 26 11 30 Total 48 19 67 If one student was chosen at random, find the probability that the student got a B. Give your answer as a fraction or decimal.
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The table shows the educational attainment of the population of Mars, ages 25 and over, expressed in millions. Find the probability that a randomly selected martian, aged 25 and over has completed four years of high school only or is a male. The probability is Male Female Total Years of High School Less than 4 12 4 only 28 11 23 (Type an integer or a simplified fraction.) 31 59 C Years of College Some (less than 4) 20 20 40 4 or more 17 23 40 Total 77 85 162
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