Based on a poll, 60% of internet users are more careful about personal information when using a public wi-fi hotspot. what is the probability that among three randomly selected internet users, at least one is more careful about personal information when using a public wi-fi hotspot? how is the result affected by the additional information that the survey subjects volunteered to respond?

What is the result of adding the system of equations? 2x+y=4 3x-y=6

Arandomized controlled trial is designed to evaluate the effect of metoprolol in patients with heart failure. while preparing for statistical analysis, the researcher reviews some common types of statistical errors. which of the following statements is true regarding a type i error in a clinical study? a. the study is not significantly powered to detect a true difference between study groups. bthe null hypothesis is true but is rejected in error. c. the null hypothesis is false but is accepted in error. d. type i error is also known as beta and is usually 0.1 or 0.2. e. type i error depends on the study's confidence interval.

Me. brady is putting trim around the edge of circular merry-go-round that has diameter of 15 feet. how much trim does he need to buy to the nearest tenth