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. Part 1 The lower limit of the fourth class is? ​(Type a whole​ number.) Question content area right Part 1 Number of Social Interactions Frequency   35​-39 10 40​-44 19 45​-49 11 50​-54 15 55​-59 20 60​-64 10 65​-69 4 70​-74 6 75​-79 0 80​-84 3

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