Question 2: A group of freshman and sophomore students was selected and each was

Question

Question 2: A group of freshman and sophomore students was selected and each was asked whether they were a member of a student club. The following table was constructed:

                  Student club               No Student Club

Freshman         10                                   10

Sophomore      15                                   9

Find the probability that a randomly selected student form the group is a freshman or is a member of a student club. Write only a number as your answer. Round to two decimal places (for example: 0.73). Do not write as a percentage.

Explanation / Answer

P( the group is a freshman or is a member of a student club.) =

P(Freshman)+ P(Student Club)- P(Freshman and Student Club)

= (20/44)+(25/44)-(10/44) =35/44 = 0.7955 = 0.79

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.