The data were collected from a statistics class. the column heads give the? variable, and each of the rows represents a student in the class. how many variables are? there?

Long division the problem is 40 ➗ 348 = ?

Evaluate cos2θ for cosθ = square root of 3/2

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.