A psychologist is interested in the social interactions of preschool children. She measures the number of verbal interactions that each child at a preschool eng
Mathematics
woodkkk6537
Question
A psychologist is interested in the social interactions of preschool children. She measures the number of verbal interactions that each child at a preschool engages in during a day. Here is the frequency distribution of the data. The cumulative frequency for the interval 4655 is _________
1 Answer

1. User Answers MrRoyal
Answer:
[tex]CF = 13[/tex]
Stepbystep explanation:
Given
See attachment for table
Required
Determine the cumulative frequency for interval 46  55
To do this, we add up the frequency from the lowest interval up to interval 46  55.
From the attached table, the lowest interval is 615.
So, the cumulative frequency (CF) is:
[tex]CF = 1+2+3+3+4[/tex]
[tex]CF = 13[/tex]