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GRE Quantitative Reasoning › Other Topics
What is the mean of:
Explanation
Step 1: Take the sum of all numbers in the set...
Step 2: Count how many elements are in the set...
There are 
Step 3: To find the mean, divide the sum by the number of elements..
The mean is
What is the mean of
Explanation
Step 1: Find the sum of the numbers
Step 2: Find how many numbers
There are 
Step 3: Divide the sum by how many numbers they are...This division gives us the mean..
Which of the following is not a subset of Set A:{ 
{
{
{
{
Explanation
Step 1: A subset of a set must have elements in Set A. If any number in the subset is not in the original set, then that subset is not a subset of that set.
{
Evaluate:
Explanation
Step 1: Write 
Step 2: Multiply Out
What is the mean of
Explanation
Step 1: Find the sum of the numbers in the set...
Step 2: Count how many numbers are in the set..
There are 10 numbers...
Step 3: Divide the total sum by how many numbers...
So,
What is the range of the set of numbers: 
Explanation
Step 1: Arrange the numbers in the set from smallest to largest:
After we arrange, we get: 
Step 2: To find the range, subtract the largest number from the smallest number.
The range of the data set is 
What is the mean of
Explanation
Step 1: Find the sum of the numbers
Step 2: Find how many numbers
There are
Step 3: Divide the sum by how many numbers they are...This division gives us the mean..
Which of the following is true about the relationship between sets?
Explanation
The subset symbol should be read as "is a subset of" So it's the first letter is a subset of the second letter. To be a subset, all of its elements must be contained in the other set.
The only one of these relationships that is true (where the entire set on the left is in the right set) is
The elements of B, 4, 5, 6, and 8 all appear in set D.
Which of the following is not a subset of Set A:{
{
{
{
{
Explanation
Step 1: A subset of a set must have elements in Set A. If any number in the subset is not in the original set, then that subset is not a subset of that set.
{
Which of the following is true about the relationship between sets?
Explanation
The subset symbol should be read as "is a subset of" So it's the first letter is a subset of the second letter. To be a subset, all of its elements must be contained in the other set.
The only one of these relationships that is true (where the entire set on the left is in the right set) is
The elements of B, 4, 5, 6, and 8 all appear in set D.