The state test scores for 12 randomly selected high school

Last updated: 4/16/2023

The state test scores for 12 randomly selected high school seniors are shown on the right Complete parts a through c below Assume the population is normally distributed a Find the sample mean x 908 8 Round to one decimal place as needed b Find the sample standard deviation S Round to one decimal place as needed 1420 695 723 622 1224 720 750 1447 980 840 540 945