Question

Two different age groups were surveyed about the amount of time they spent on social media. Answer the questions on the picture.

Answer 1

A)320. You got the adding up somewhere

B)20

Explanation:

For A you got the adding wrong somewhere.

For b you had to add 25 and 35 together to make 60.

Divide 60 by 2 to get 30. 30 is the average between the two numbers. You then find the frequency of 30 using the graph. For the 12 year olds it is 40 and for the 18 year olds it is 60. Find the difference between these 2. So 60-40= 20

Hope you understood ;)