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a high school marching band has 24% seniors 22% Juniors 28% sophomores and 26% freshmen. what is the probability of a randomly-chosen student being either a sophomore or a junior?​

a high school marching band has 24 seniors 22 Juniors 28 sophomores and 26 freshmen what is the probability of a randomlychosen student being either a sophomore class=

Respuesta :

Answer: 50

Step-by-step explanation:

Add 22% and 28% to get the probability of how many juniors and sophomores.

wegnerkolmp2741o

Answer:

50%

Step-by-step explanation:

24 seniors, 22 junior, 28 sophomores, 26 freshmen = 100

P(sophomore or junior) = sophomore or junior)/ total

                                       = 28+22/ 100

                                        = 50/100

                                           = 50%

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