A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 0.1% margin of error at a 99.5% confidence level, what size of sample is needed

Click on the y intercept. -x +4 i know you cant click on it so could you just say the coordinates like (example - (1,0) you so much.

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?

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9