PLEASE HELP! According to Mediamark Research, Inc. 86% of all U. S. households in 2007 owned at least one cellular phone. In a simple random sample of 300 households, what is the standard deviation of households that own at least one cellular
phone? Round to the nearest tenth.

The variable in a relation who’s value depends on the value of the independent variable is called what?

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.

To decrease an amount by 16% what single multiplier would you use