From the table, we must determine the class boundaries for the class with the highest frequency, AS (Highest frequency = 19).
($35-45) is the range for the frequency 19 class.
the class's restrictions. with 19 having the highest frequency, followed by 35 to 45.
The first step in calculating the mean of grouped data is to establish the midpoint of each interval or class. The frequencies of the relevant classes must then be multiplied by these midpoints. The mean value is determined by dividing the total number of values by the sum of the products.
The numbers used to demarcate classes are called class borders. The difference between a class's upper class limit and its lower class limit indicates the extent of the gap between classes. In this instance, gap = 50 - 49 = 1 (gap).
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