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WAEC - Mathematics (2014 - No. 39)

The bar chart shows the scores of some students in a test. If one students is selected at random, find the probability that he/she scored at most 2 marks
\(\frac{11}{18}\)
\(\frac{11}{20}\)
\(\frac{7}{22}\)
\(\frac{5}{19}\)

คำอธิบาย

at most 2 marks = 5 + 2 + 4 students = 11 students

probability(at most 2 marks) = \(\frac{11}{20}\)

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