Salman flips a fair coin 350 times. Part A
How many times would you expect Salman to flip heads?
Part B
Was your answer to part a based on theoretical probability or relative frequency?
​Explain.
Part C
​How many times will Salman flip heads?
A 176
B176
C 165
DbYou really cannot tell for sure

Part A- About 1/2(half) of 350 would be reasonable since there is only two options for all 350 flips.

Part B- Theoretical probability, since an experiment has yet to be conducted it can't be experimental.

Part C- a or b would be a good answer, unless one should be different.

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.