A researcher reports survey results by stating that the standard error of the mean is . The population standard deviation is . a. How large was the sample used in this survey

Abouncy ball is released from a certain height. on the first bounce, it travels 32cm. with each subsequent bounce, it travels 9/10 the distance of the previous bounce. what is the total distance that the ball has traveled when it completes its 25th bounce?

Simplify the expression below -3(10x+4y)+6(6x-2y)

87.5% , 100% , 83.33 , 93.33% , 100% , 82.5% are all the academic points i've gotten this quarter. what's my final grade?