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This table shows how many sophomores and juniors attended two school events.  Jazz band concert Volleyball game TotalSophomore 35 42 77Junior 36 24 60Total 71 66 137What is the probability that a randomly chosen person from this group is a sophomore and attended the jazz band concert?Round your answer to two decimal places.A.0.26B.0.31C.0.52D.0.56SUBMITarrow_backPREVIOUS

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This table shows how many sophomores and juniors attended two school events.  Jazz band concert Volleyball game TotalSophomore 35 42 77Junior 36 24 60Total 71 66 137What is the probability that a randomly chosen person from this group is a sophomore and attended the jazz band concert?Round your answer to two decimal places.A.0.26B.0.31C.0.52D.0.56SUBMITarrow_backPREVIOUS

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Solution 1

To solve this problem, we need to find the number of sophomores who attended the jazz band concert and divide it by the total number of students.

From the table, we can see that the number of sophomores who attended the jazz band concert is 35. The total number of students is 137.

So, the probability is calculated as follows:

Probability = Number of sophomores who attended the jazz band concert / Total number of students

= 35 / 137

= 0.255 (rounded to three decimal places)

When rounded to two decimal places, the probability is 0.26.

So, the answer is A. 0.26.

This problem has been solved

Solution 2

To find the probability that a randomly chosen person from this group is a sophomore and attended the jazz band concert, we need to divide the number of sophomores who attended the jazz band concert by the total number of people.

From the table, we can see that 35 sophomores attended the jazz band concert and there are a total of 137 people.

So, the probability is 35/137 = 0.255 (rounded to three decimal places).

If we round this to two decimal places, we get 0.26.

So, the answer is A. 0.26.

This problem has been solved

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