You have a distribution of 10,000 SAT scores, given to you in an Excel file. The mean of these scores is 1050 and the standard deviation is 140. Which of the following is a correct statement about the associated sampling distribution for samples of size 30:
Group of answer choices
the sampling distribution consists of the averages from every possible sample of 30 scores from our file
the sampling distribution has standard deviation approximately equal to 140/sqrt(10000)
the sampling distribution consists of some, but not all, averages from samples of 30 scores from our file
the sampling distribution has mean approximately equal to 1050/sqrt(30)