Among people age 18–24, the most popular social network is ; among people aged 35–44, the most popular social network is

FOR age between 18 and 24  is Snap chat,

age between  35 and 44  is LinkedIn

Explanation:

the most popular social networking sites for the people in the age between 18 and 24  is Snap chat,

Snap chat -  because of easy handling it is quite popular in the youth

the most popular social networking sites for the people in the age between  35 and 44  is LinkedIn

LinkedIn - it is social platform for professional where people get connected due to get any job reference or for sharing knowledge regarding their fields.

50% i think

explanation:

answer; group think;