This Question: 1 pt 8 of 20 (0 complete) A frequency distribution for the class

Question

This Question: 1 pt 8 of 20 (0 complete) A frequency distribution for the class level of students in an Class Frequency introductory statistics course is shown. Two students are Freshman randomly selected without replacement. Complete parts (a) Sophomore1 through (d). Junior Senior a. Determine the probability that the first student obtained is a junior and the second a senior. The probability that the first student obtained is a junior and the second a senior is (Type an integer or a decimal rounded to three decimal places as needed.) b. Determine the probability that both students obtained are sophomores. The probability that both students obtained are sophomores is Type an integer or a decimal rounded to three decimal places as needed.)

Explanation / Answer

Total frequency = 6 + 16 + 11 + 8 = 41

a) P(first is junior and second is senior) = (11/41) * (8/40) = 0.054

b) P(both are sophomore) = (16/41) * (15/40) = 0.146

d) P(one is freshman and other is sophomore) = 2 * (6/41) * (16/40) = 0.117

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