BECE Mathematics 2017 Paper

Concept:The mode is the value that occurs the most number of times in a given data set.It is one of the three common measures of central tendency, along with mean and median.Explanation:The data gives the number of pupils who attended the hospital from eight classes: $1, 5, 3, 1, 7, 5, 1, 1$.To find the mode, count how many times each number occurs in the list.The value $1$ occurs $4$ times.The value $5$ occurs $2$ times.The value $3$ occurs exactly $1$ time.The value $7$ occurs exactly $1$ time.Now compare these frequencies.The highest frequency is $4$, which belongs to the value $1$.Since $3$ and $7$ appear only once, they cannot be the mode.Since $5$ appears only twice, it is less frequent than $1$.Hence, the number that appears the most is $1$.Therefore, the modal number is $1$.Answer:The modal number is $1$, so the correct option is A.