Find the sample standard deviation and the population standard deviation of the data set. 68, 56, 43, 60, 70, 75, 72, 45, 54, 51, 59, 45, 47, 82, 46

What is sin 7x/4 ? i need on this urgent trig

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?

Anita has a success rate of 80% on free throws in basketball. she wants to know the estimated probability that she can make exactly four of five free throws in her next game. how can she simulate this scenario? categorize each simulation of this scenario as correct or incorrect.