Please help! Find the error & explain why it is wrong:
Jon wanted to solve this problem

The number of visitors to a website is the first week is 40. The visitors each week is double the number of visitors the previous week. What is the total number of visitors to the website in the first 10 weeks?

What did he do wrong?

Step___ is incorrect because _. Instead, you should _.

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?