This table shows how many sophomores and juniors attended two school events. a student is selected randomly from this group.

B. 0.45

Step-by-step explanation:

From the given table, the total number of students = 137

The number of students are sophomores =35+42=77

Let A be the event that students are sophomores.

Then probability that students are sophomores is given by  :

The number of sophomores who attended the jazz concert = 35

Let B be the event that students attended the jazz concert .

The probability that students attended the jazz concert and are sophomores is given by  :

Now, the probability of that the student attended the jazz concert, given that the students is sophomore is given by :-

rx and sx

step-by-step explanation:

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step-by-step explanation:

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