Abasketball coach asks have his players to stretch before each game the players do not stretch after a month of the games she analyzes they’re playing stats she concludes the stretching improve their performance on the court how can the coach test the means to be sure the results not likely to happen by chance

This question is probably lacking choices, but luckily  i happen to know the choices and the correct answer as this was shown in one of our tests in school.the following are the choices for the question: a.) she can pick players at random and analyze their playing stats without calculating means.b.) she can analyze the two groups by calculating the means and the difference of the means  c.) she can re-randomize the results by separating the two groups randomly, then calculate the means and the difference of the means.d.) she can pick the players she wants to analyze based on the best stats.  the correct answer is c. she can re-randomize the results by separating the two groups randomly, then calculate the means and the difference of the means.

C. expression because any expression or equation may contain more than one variable