An entertainer will be performing a concert in December. Jake’s boss has an opportunity to get up to 50 front-row tickets, and he wants to find out which of the employees enjoy the entertainer’s music. What type of method is appropriate for Jake to use to get this information?
an observational study
a census
a survey
an experiment

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.

Which statement describes surface features called maria on the moon