In addition to the way we phrase questions, the method of surveying can also introduce bias. what are some potential biases that could occur when using the following survey techniques? -in-person -mail -phone -e-mail -text -social media make sure you consider—among other things—how expensive each method is, the outreach potential, response time, and response rate.

Over the course of the school year, you keep track of how much snow falls on a given day and whether it was a snow day. your data indicates that of twenty-one days with less than three inches of snow, five were snow days, while of the eight days with more than three inches of snow, six were snow days. if all you know about a day is that it is snowing, what is the probability that it will be a snow day?