Question

a professor had students keep track of their social interactions for a week. the number of social interactions over the week is shown in the grouped frequency distribution. identify the lower limit of the fourth class. the lower limit of the fourth class is \boxed{}. (type a whole number.) \

$$\begin{tabular}{|c|c|} \\hline number of social interactions & frequency \\\\ \\hline 10 - 14 & 6 \\\\ \\hline 15 - 19 & 18 \\\\ \\hline 20 - 24 & 12 \\\\ \\hline 25 - 29 & 16 \\\\ \\hline 30 - 34 & 10 \\\\ \\hline 35 - 39 & 11 \\\\ \\hline 40 - 44 & 7 \\\\ \\hline 45 - 49 & 5 \\\\ \\hline 50 - 54 & 0 \\\\ \\hline 55 - 59 & 4 \\\\ \\hline \\end{tabular}$$

Explanation:

Step1: List classes in order

First class:10-14, Second:15-19, Third:20-24, Fourth:25-29

Step2: Find lower limit of fourth class

The lower limit is the smaller number in the fourth class interval.

Answer:

25