.Which of the following is likely to have the greatest variability?
A. The cost of a piece of candy from a vending
machine
B. The height of all the students at West Middle
School
The age of all the students in the sixth grade
D. The number of days in a month

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

correct answer is option b.

step-by-step explanation:

the true statement about geometric figure is option b that is one line can be drawn through all three points.

if three points are on the same plane, they can be connected by a line.