NEED HELP PLEASEEE need step by step

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?

What is the sum of these mixed numbers 4 2/3+ 3 1/9