Find the value of a from given figure.​

Standard deviation of 19,29,21,22,23

Compute the standard deviation of the following set of data to the nearest whole number. 10, 10, 15, 20, 25

Your weight on the moon is relative to your weight on earth. neil armstrong weighed 360 lbs. in his moon gear while on the earth, but on the moon he only weighed 60 lbs. how much would a 150 lb person weigh on the moon?