Waec Model Questions Vol2 2025 Mathematics Question 11
Practice objective / multiple choice question 11 from the 2025 Waec Model Questions Vol2 Mathematics examination.
Twenty‑five students took a test. The frequency distribution of the number of books read by each student is given below: \[\begin{array}{c|c}\text{Books read} & \text{Number of students} \\hline 0 & 4 \\ 1 & x \\ 2 & 7 \\ 3 & 5 \\ 4 & 3 \\ 5 & 2 \end{array}\] The mean number of books read is \(2.2\). After four additional students each read exactly two books, the mean becomes \(2.17\) (rounded to two decimal places). (a) Find the missing frequency \(x\). (b) State the mode of the original distribution. (c) What percentage of the original 25 students read more than three books? Give your answer to the nearest whole percent.
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This is Waec Model Questions Vol2 2025 Mathematics Question 11. It is one of the objective questions from the 2025 Waec Model Questions Vol2 Mathematics examination.
Difficulty level: Hard .
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