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 following grouped frequency distribution. how many students had at least 45 social interactions for the week? the number of students was (type a whole number)

Explanation:

Step1: Identify relevant frequency groups

Groups with at least 45 social interactions: 45 - 49, 50 - 54, 55 - 59, 60 - 64.

Step2: Sum the frequencies

$$6 + 6+1 + 4$$
$$=12 + 1+4$$
$$=13 + 4$$
$$=17$$

Answer:

17