Question

A survey asked a random sample of students if they estimated they spent more or less than an hour a day on social media. Results are shown in the table below, but some values are missing. Fill in the missing values.
Social Media
Grade More Less Total
7th grade
27
8th grade 14
Total 38 46

Answer 1

Completed table:

Social Media
Grade | More | Less | Total
7th grade | 24 | 27 | 51
8th grade | 14 | 19 | 33
Total | 38 | 46 | 84

Calculations: 7th More = 38 − 14 = 24; 8th Less = 46 − 27 = 19; row totals 24+27=51 and 14+19=33 (total 84).