This is a standard deviation contest. which of the following sets of four numbers has the smallest possible standard deviation?
a. 7, 8, 9, 10
b. 5, 5, 5, 5
c. 0, 0, 10, 10
d. 0, 1, 2, 3

How to do this , and can some one explain

Which of the following three dimensional figures has a circle as it’s base

Astudent has created the give circuit diagram. it consists of a battery, a resistor, and a light bulb. in one minute, 1.2c of charge flows through the resistor. how much charge flows through the light bulb in one minute?