Question #6422366Single Choice
Algebra-1
Question
A survey of 600 high school students was conducted to examine their preferred extracurricular activity (Sports, Music, Drama) and their grade level (9th, 10th, 11th, 12th). The results are summarized in the table below:
What is the marginal frequency of students in 9th and 12th grades combined?
Options
A
280
B
300
C
320
D
340
Answer & Analysis
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