Which of the following best describes why randomized controlled trials are considered to produce the most reliable results

Arrange the images in order to show how lake-effect snow occurs.

Where do magnetic lines of force enter earth?

Asynthetic fiber used in manufacturing carpet has tensile strength that is normally distributed with mean 75.5 psi and standard deviation 3.5 psi. how is the standard deviation of the sample mean changed when the sample size is increased from n equals 8 to n equals 47