what is the mean of all three-digit positive integers in the set {2, 0, 1, 9}

Guest Dec 14, 2018

#1**+2 **

Count how many three digit numbers you can form, then add all of them up, and divide by how the number of numbers.

tertre Dec 14, 2018

#2**0 **

Um...I don't see any three digit numbers in the set {2, 0, 1, 9}. I only see single-digit numbers.

PartialMathematician Dec 15, 2018

#3**0 **

mean is the same thing as average. Add up all terms, and divide by the number of terms.

if there 3 terms of x, y, and z, the mean or average is \(\dfrac{x+y+z}{3}\).

PartialMathematician
Dec 15, 2018