Probability of A Random Sample Meeting Criteria : <p>I need to know how to find the probability that a random sample of 9 SAT‐ takers will get a group average score of 1340 and above. All I am given is the mean = 1060 and the standard deviation is 195. I am new to r and can't seem to find a tutorial online that shows me how to find this.  I have found the probability of all SAT-takers scoring 1340 and above, I'm just not sure how to add a sample size restriction. </p>
