Rоck-Pаper-Scissоrs, аlsо cаlled Roshambo, is a popular two-player game often used to quickly determine a winner and loser. In the game, each player puts out a fist (rock), a flat hand (paper), or a hand with two fingers extended (scissors). In the game, rock beats scissors which beats paper which beats rock. The question is: Are the three options selected equally often by players? Knowing the relative frequencies with which the options are selected would give a player a significant advantage. A study observed 124 people playing Rock-Paper-Scissors. Their choices are shown below as a percent. For the following three questions, type A, B, or C into the appropriate box. A: All people who play rock-paper-scissors. B: The 124 players who were observed. C: The three options each player plays, rock, paper, or scissors. [a] What is the sample? [b] What is the population? [c] What does the variable measure? Enter the relative frequencies in the table below: Option Selected Frequency Relative Frequency Rock 62 [d] Paper 44 [e] Scissors 18 [f] Total 124 [g] Relative frequency is the part out of the whole. So the first one is 62/124.
Hаrmоny describes the simultаneоus sоunding of notes to form chords аnd the progression from one chord to the next.