BA 302 ESSAY QUESTIONS.docx-Word NCES MAILINGS REVIEW VIEW ADD-INS ACROBAT !. 0-
ID: 2923204 • Letter: B
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BA 302 ESSAY QUESTIONS.docx-Word NCES MAILINGS REVIEW VIEW ADD-INS ACROBAT !. 0-. ||1 Normal!! No Spac Heading 1 Heading 2 Title Subtitle Subtle Em.. Emphast Paragraph Styles 3 4. At a college, 55 percent of the students are female and 40 percent of the students receive a grade of C. About 35 percent of the students are female and not C students. Use this contingency table GenderlGrade Female (E Not Cor C 0.35 0.55 Male (M 0.40 If a randomly selected student is male, what is the probability he is a "C student?ll 5 A and B are independent events. Moreover. RCA)-0.S and P(B)-0.5 Determime PA u B) that is, P(A or B) Chapter6 6. The J.O. Supplies Company buys calculators from a Korean supplier The probability of a defective calculator is 15%. If 14 calculators are selected at random, what is the probability that less than 4 of the calculators will be defective?Explanation / Answer
As per the Chegg policy,we are advised to do one question at a time so i am attempting the 5th.
5. P(A) = 0.8 and P(B) = 0.5
Since A and B are independent,
P(A and B) = P(A) P(B) = 0.8*0.5 = 0.4
Hence,
P(A U B) = P(A) + P(B) - P(A and B) = 0.8 + 0.5 - 0.4 = 0.9
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