A random sample of n = 9 scores is obtained from a normal population with µ = 40 and σ = 18. What is the probability that the sample mean will be greater than M = 43?

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)