GRE Subject Test: Math : Range & IQR

Study concepts, example questions & explanations for GRE Subject Test: Math

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Example Questions

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Example Question #1 : Range & Iqr

What is the range of the set of numbers: ?

Possible Answers:

Correct answer:

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 .

Example Question #2 : Range & Iqr

What is the range of the numbers: 

Possible Answers:

Correct answer:

Explanation:

Step 1: Re-write all numbers in order from smallest to largest

.

Step 2: Subtract the largest number and smallest number



The range is .

Example Question #3 : Range & Iqr

What is the range of the set: {}

Possible Answers:

Correct answer:

Explanation:

Step 1: Arrange the numbers from smallest to largest:

We get: 

Step 2: Find the range.. To find this, subtract the biggest number from the smallest number



The range is 

Example Question #41 : Other Topics

Find the range of the set of numbers: 

Possible Answers:

Correct answer:

Explanation:

Step 1: Arrange the numbers from smallest to largest. If the numbers are already written that way, then skip this step..

The numbers need to be arranged.. We will get: 

Step 2: To find the range, subtract the smallest number from the biggest number...

So, 

The range of this set of numbers is ...

Example Question #42 : Other Topics

What is the range of the numbers: 

Possible Answers:

Correct answer:

Explanation:

Step 1: See if the numbers are in order..

The numbers are in order from smallest to largest..

Step 2: Subtract the largest number and the smaller number:



 is the range.

Example Question #4 : Range & Iqr

What is the range of: 

Possible Answers:

Correct answer:

Explanation:

Step 1: Rearrange the numbers from smallest to largest:

After rearranging, we have: 

Step 2: Find the smallest number:

The smallest number is .

Step 3: Find the largest number:

The largest number is .

Step 4: Subtract the smallest number from the smallest number:



The range is .

Example Question #44 : Other Topics

Find the range of: 

Possible Answers:

Correct answer:

Explanation:

Step 1: Locate the smallest and largest numbers in the set above...

Largest is , smallest is 

Step 2: To find the range, subtract smallest from largest...

Range=

Example Question #5 : Range & Iqr

What is the range of the set, ?

Possible Answers:

Does Not Exist

Correct answer:

Does Not Exist

Explanation:

Step 1: Define Range of a set..

You can calculate the range by subtracting the smallest number from the largest number in the set..

Step 2: There are no numbers in this set. This set is also known as the empty set..

The range of a set that has no elements does not exist.

Example Question #46 : Other Topics

If , find the IQR (Inter-Quartile Range)

Possible Answers:

Correct answer:

Explanation:

Step 1: To find the Inter-Quartile Range, we need  and .

The formula for the Inter-Quartile Range is: .

Step 2: Plug in the given values of  to the equation...

So, the IQR=

Example Question #47 : Other Topics

Find the range: 

Possible Answers:

Correct answer:

Explanation:

Rearrange the numbers in the set from smallest to largest:



To find the range, subtract the smallest number from the bigger number:

The range is .

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