HELP ME Randomthing2143! What's the mean of 2, 43, 67, 18?

32.5

Step-by-step explanation:

Mean = Sum of observations / Total number of observations

Mean = 2+43+67+18 / 4

Mean = 130/4

Mean = 32.5

Given data:

2,43,67,18

summation FX=130

N(total number of items)=4

Now,

Mean:

Hope this helps..

your answer is a

step-by-step explanation:

4*4*4*4=256

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.