Question

A professor has students keep track of the social interactions for a week the number of social interactions over the week and selling in the following group frequency distribution how many students had at least 60 social interactions for the week?

Answer 1

For at lest 60 social interaction:

So social interaction is:

60 - 64 4

65 - 69 3

70 - 74 0

75 - 79 4

So student of these social interaction is:

$\begin{gathered} =4+3+0+4 \\ =11 \end{gathered}$

So total 11 students had at lest 60 social interaction.