One of the ideas that you have explored in previous courses is how to describe a set of data. One of the ways that you may have seen before is finding an average (also called a mean). Read the Math Notes box for this lesson to review what a mean is and how to find it. Then find the mean for each set of data below. Math Notes (Links to an external site.)

Jane’s quiz scores: 82, 64, 73, 91, 85

The number of cats your teammates have as pets: 0, 1, 3, 2

The number of minutes Pam talked on the phone: 35, 40, 12, 16, 25, 10

step-by-step explanation:

cluster sampling.

step-by-step explanation:

you are playing an adventure game on your computer. you come across a troll who won't let you pass and there is no other way to get to the other side of the river except over the bridge he is guarding.

the troll is a nerd. he takes great delight in watching people struggle with his problems. very few get them. he only gives you one chance and then he changes the puzzle. you have to solve this one.

before you are four blocks. they are numbered 11,6, -7,21.

he tells that the answer he wants is minus and between -1 and - 2. you can use +, -, ×, ÷   ( and ) as many times as you like or no times at all. you don't like the way he's looking at you, but you need to cross the bridge. what do you do?