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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-example-1
User Royco
by
8.0k points

2 Answers

5 votes

Answer:

50%

Explanation:

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

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

= 28+22/ 100

= 50/100

= 50%

User Anastasia Black
by
9.7k points
0 votes

Answer: 50

Explanation:

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

User Mike Oram
by
8.6k points
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