A population has a standard deviation of 7.89. What is the approximate standard error of the mean for a sample size of 300? A. 17.32
B. 0.026
C. 2.20
D. 0.46

New york is the 27th largest state in the united states.what percent of the 50 states in the us are larger than new york

Perform the indicated operation. y^2 + 3y - 10 / 3y + 15

Arectangle has a perimeter of 20 cm. the length, x cm, of one side of this rectangle is uniformly distributed between 1 cm and 7 cm. find the probability that the length of the longer side of the rectangle is more than 6 cm long.