Question

the number of students in the tutoring center was recorded for 38 randomly selected times. the data is summarized in the frequency table below.

number of students	frequency
3 - 5	11
6 - 8	14
9 - 11	6
12 - 14	1

what is the class width for this frequency distribution table?
class width =
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Explanation:

Step1: Select a class interval

Take the first class interval $0 - 2$.

Step2: Calculate class - width formula

Class width = Upper class limit - Lower class limit. For the interval $0 - 2$, the upper class limit is $2$ and the lower class limit is $0$. So, class width=$2 - 0=3$. We can also check with other intervals. For example, for the interval $3 - 5$, upper class limit = $5$, lower class limit = $3$, and class width=$5 - 3 = 3$.

Answer:

$3$