Take the number 1,2,3,4,5 and 6. What is their rms value ? How does this compare with their simple average ?

What is the value of sin 2 sin^(-1)(3/5) ?

A die of six faces marked with the integers 1,2,3,4,5,6 one on each face is thrown twice in succession, what is the total number of outcomes thus obtained?

A school has six classes 1, 2, 3, 4, 5 and 6 classes 2, 3, 4, 5 and 6 each have the same number of students, but there are twice this number in class 1. If a student is selected at random from the school, What is the probability that he (she)will be in class 1

A school has six classes 1, 2, 3, 4, 5 and 6 classes 2, 3, 4, 5 and 6 each have the same number of students, but there are twice this number in class 1. If a student is selected at random from the school, What is the probability that he (she)will be in class 2

What is the principal value of sin^(-1)(sinfrac[5pi][6])

An unbiased die of six faces, market with the integers 1,2,3,4,5,6, one on each face, is thrown thrice in succession. What is the total number of outcomes ?